An action is a thing that is done, and not merely thought or spoken about. Possible actions could range from blinking to invading a country.

Action comes from agere, the Latin verb meaning "to do." Legal action is the initiation of a lawsuit to demand your rights. In war, a soldier working in the kitchen is on cooking duty, while the soldier on the frontline sees a lot of action. Action movies are so called because they are full of fast-paced sequences. If you are sitting on your couch, mulling over your lack of exercise, maybe it's time to take action.

Primary Meanings of action

something done (usually as opposed to something said)
put in effect
an act by a government body or supranational organization
institute legal proceedings against; file a suit against
the series of events that form a plot
the operating part that transmits power to a mechanism
Full Definitions of action

n something done (usually as opposed to something said)

“there were stories of murders and other unnatural actions
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(theology) God's act of bringing the universe into existence
the withdrawal of eleven southern states from the Union in 1860 which precipitated the American Civil War
Berlin airlift
airlift in 1948 that supplied food and fuel to citizens of west Berlin when the Russians closed off land access to Berlin
final solution
the mass murder of Jews under the German Nazi regime from 1941 until 1945
a siege and massacre at a mission in San Antonio in 1836; Mexican forces under Santa Anna besieged and massacred American rebels who were fighting to make Texas independent of Mexico
Battle of the Little Bighorn
a battle in Montana near the Little Bighorn River between United States cavalry under Custer and several groups of Native Americans (1876); Custer was pursuing Sioux led by Sitting Bull; Custer underestimated the size of the Sioux forces (which were supported by Cheyenne warriors) and was killed along with all his command
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an action
benignity, kindness
a kind act
accomplishment, achievement
the action of accomplishing something
the action of alienating; the action of causing to become unfriendly
the action of putting something into operation
res gestae
things done
course, course of action
a mode of action
a mutual or reciprocal action; interacting
the action of fetching
the action of taking part in a game or sport or other recreation
play, swordplay
the act using a sword (or other weapon) vigorously and skillfully
the act of arriving at a certain place
carrying into action, carrying out, execution, performance
the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it
choice, option, pick, selection
the act of choosing or selecting
the action of changing something
economy, saving
an act of economizing; reduction in cost
forbiddance, inhibition, prohibition
the action of prohibiting or inhibiting or forbidding (or an instance thereof)
opposition, resistance
the action of opposing something that you disapprove or disagree with
involuntarily or unconsciously clenching or grinding the teeth, typically during sleep
the action of pouring a liquid from one vessel to another
pickings, taking
the act of someone who picks up or takes something
the action of going beyond or overstepping some boundary or limit
aggression, hostility
violent action that is hostile and usually unprovoked
destabilisation, destabilization
the action of destabilizing; making something less stable (especially of a government or country or economy)
employment, engagement
the act of giving someone a job
civility, politeness
the act of showing regard for others
an act showing respect (especially a bow or curtsy)
consultation, reference
the act of referring or consulting
accenting, accentuation, emphasizing
the act of giving special importance or significance to something
the action of rendering supremely blessed and extremely happy
jump-start, jumpstart
starting an automobile engine that has a weak battery by means of jumper cables to another car
the action of stupefying; making dull or lethargic
the actions or practices of a vampire
beachhead, foothold
an initial accomplishment that opens the way for further developments
an easy accomplishment
effort, exploit, feat
a notable achievement
an outstanding achievement
an achievement demonstrating great skill or mastery
used in the phrase `to your credit' in order to indicate an achievement deserving praise
blind alley
(figurative) a course of action that is unproductive and offers no hope of improvement
collision course
a course of action (following a given idea) that will lead to conflict if it continues unabated
reciprocal action and reaction
close interaction
give-and-take, interchange, reciprocation
mutual interaction; the activity of reciprocating or exchanging (especially information)
the playing of a game of tenpins or duckpins etc
any recognized accomplishment
record, track record
the sum of recognized accomplishments
accomplished fact, fait accompli
an irreversible accomplishment
going, sledding
advancing toward a goal
arrival, reaching
accomplishment of an objective
entering, entrance, entry, incoming, ingress
the act of entering
the act of entailing property; the creation of a fee tail from a fee simple
the act of appearing in public view
homecoming, return
a coming to or returning home
the act of anchoring
dockage, docking, moorage, tying up
the act of securing an arriving vessel with ropes
the act of coming to land after a voyage
the act of coming down to the earth (or other surface)
close call, close shave, narrow escape, squeak, squeaker
something achieved (or escaped) by a narrow margin
the act of achieving an aim
freeing, liberation, release
the act of liberating someone or something
specific performance
the performance of a legal contract as specified by its terms
linguistic performance
(linguistics) a speaker's actual use of language in real situations; what the speaker actually says, including grammatical errors and other non-linguistic features such as hesitations and other disfluencies (contrasted with linguistic competence)
mechanics, mechanism
the technical aspects of doing something
(baseball) playing the position of catcher on a baseball team
playing golf
(baseball) playing the position of pitcher on a baseball team
base on balls, pass, walk
(baseball) an advance to first base by a batter who receives four balls
the act of reporting your presence (as at an airport or a hotel)
the choice of actors to play particular roles in a play or movie
coloration, colouration
choice and use of colors (as by an artist)
(statistics) the selection of a suitable sample for study
conclusion, decision, determination
the act of making up your mind about something
volition, willing
the act of making a choice
about-face, policy change, reversal, volte-face
a major change in attitude or principle or point of view
the act of adulterating (especially the illicit substitution of one substance for another)
move, relocation
the act of changing your residence or place of business
a change to a lower gear in a car or bicycle
a change from a financially rewarding but stressful career to a less well paid but more fulfilling one
the act of selecting someone or something; the exercise of deliberate choice
ballot, balloting, vote, voting
a choice that is made by counting the number of people in favor of each alternative
the act of changing a fluid by passing it through a filter
reduction, simplification
the act of reducing complexity
curtailment, downsizing, retrenchment
the reduction of expenditures in order to become financially stable
economy of scale
the saving in cost of production that is due to mass production
decimalisation, decimalization
the act of changing to a decimal system
metrication, metrification
the act of changing from imperial units of measurement to metric units: meters, grams, seconds
the act of changing or altering something slightly but noticeably from the norm or standard
act of changing in practice or custom
diversification, variegation
the act of introducing variety (especially in investments or in the variety of goods and services offered)
in constant change
shift, switch, switching
the act of changing one thing or position for another
commutation, exchange, substitution
the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help"
act of raising in rank or position
act of lowering in rank or position
change of state
the act of changing something into something different in essential characteristics
adjustment, alteration, modification
the act of making something different (as e.g. the size of a garment)
a management action resisting employee's demands; employees are barred from entering the workplace until they agree to terms
doing something in opposition to another way of doing it that you don't like
motion, move, movement
the act of changing location from one place to another
the act of changing the location of something
motility, motion, move, movement
a change of position that does not entail a change of location
change of direction, reorientation
the act of changing the direction in which something is oriented
change of magnitude
the act of changing the amount or size of something
change of integrity
the act of changing the unity or wholeness of something
the act of changing from one use or function or purpose to another
the act of changing something to bring it up to date (usually by adding something)
change of shape
an action that changes the shape of something
path, way, way of life
a course of conduct
the performance of a religious or ceremonial or public duty
taking full advantage of an opportunity while it lasts
anti-takeover defense
resistance to or defense against a hostile takeover
the act of gently pouring off a clear liquor (as from its original bottle) without disturbing the lees
meat grinder
any action resulting in injury or destruction
force, violence
an act of aggression (as one against a person who resists)
pillage, pillaging, plundering
the act of stealing valuable things from a place
act of fulfilling a desire or need or appetite
nationalisation, nationalization
the action of rendering national in character
communisation, communization
a change from private property to public property owned by the community
secularisation, secularization
the activity of changing something (art or education or society or morality etc.) so it is no longer under the control or influence of religion
the act of changing the institution that invests your pension plan without incurring a tax penalty
the art or sport of fighting with swords (especially the use of foils or epees or sabres to score points under a set of rules)
a way of hiring longshoremen by the day; applicants gather around a union boss who selects those to be hired
the recall of an employee after a layoff
booking, reservation
the act of reserving (a place or passage) or engaging the services of (a person or group)
benefaction, benevolence
an act intending or showing kindness and good will
cupboard love
a show of affection motivated by selfishness
favor, favour
an act of gracious kindness
forgiveness, pardon
the act of excusing a mistake or offense
the act of showing affection
a courteous or respectful or considerate act
deference, respect
a courteous expression (by word or deed) of esteem or regard
formal expression of respect
consideration, thoughtfulness
a considerate and thoughtful act
face saver, face saving
an act that avoids a loss of face (of dignity or prestige)
enlisting, recruitment
the act of getting recruits; enlisting people for the army (or for a job or a cause etc.)
the act of smoothing
bow, bowing, obeisance
bending the head or body or knee as a sign of reverence or submission or shame or greeting
curtsey, curtsy
bending the knees; a gesture of respect made by women
Type of:
act, deed, human action, human activity
something that people do or cause to happen

n the state of being active

“he is out of action
activeness, activity
inaction, inactiveness, inactivity
the state of being inactive
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the state of being in action or exerting power
busyness, hum
the state of being or appearing to be actively engaged in an activity
behavior, behaviour
the action or reaction of something (as a machine or substance) under specified circumstances
eructation, eruption, extravasation
(of volcanos) pouring out fumes or lava (or a deposit so formed)
the state of being in effect or being operative
the state of high or excessive activity or productivity or concentration
a state in which action is feasible
a state of steady vigorous action that is characteristic of an activity
an agency that escapes control and destroys its creator
the state of being in good working order and ready for operation
the state of being in operation
the state of an engine or other mechanism that is idling
Type of:
the way something is with respect to its main attributes

n the trait of being active and energetic and forceful

“a man of action
Type of:
the trait of being highly motivated

n a process existing in or produced by nature (rather than by the intent of human beings)

“the action of natural forces”
activity, natural action, natural process
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the spread of a group of organisms into new habitats
(physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium
the process of becoming acid or being converted into an acid
adiabatic process
(thermodynamics) any process that occurs without gain or loss of heat
the process of exposing to air (so as to purify)
the process of preventing redeposition
any process in which an atomic or nuclear system acquires an additional particle
a process whereby a star or planet holds an object in its gravitational field
the process of separating substances of different densities by the use of a centrifuge
chemical action, chemical change, chemical process
(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
a process used for separating mixtures by virtue of differences in absorbency
the formation of stonelike objects within a body organ (e.g., the kidneys)
the process of changing from a gaseous to a liquid or solid state
(meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
clotting, coagulation, curdling
the process of forming semisolid lumps in a liquid
the process of gradually becoming inferior
demagnetisation, demagnetization
the process of removing magnetization
changing from an adsorbed state on a surface to a gaseous or liquid state
(physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
disintegration, dissolution
separation into component parts
distillation, distillment
the process of purifying a liquid by boiling it and condensing its vapors
the gradual departure from an intended course due to external influences (as a ship or plane)
the process of bubbling as gas escapes
cataphoresis, dielectrolysis, electrophoresis, ionophoresis
the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode
ecesis, establishment
(ecology) the process by which a plant or animal becomes established in a new habitat
the reduction of the intensity of radiation as a consequence of absorption and radiation
the process of obtaining something from a mixture or compound by chemical or physical or mechanical means
the process in which part of the output of a system is returned to its input in order to regulate its further output
the process whereby fluids pass through a filter or a filtering medium
the process of flocculating; forming woolly cloudlike aggregations
any uninterrupted stream or discharge
natural process that causes something to form
fossilisation, fossilization
the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone
geologic process, geological process
(geology) a natural process whereby geological features are modified
curing, hardening, set, solidification, solidifying
the process of becoming hard or solid by cooling or drying or crystallization
the process of rendering inactive
ion exchange
a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid; widely used in industrial processing
ionisation, ionization
the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas
leach, leaching
the process of leaching
magnetic induction, magnetisation, magnetization
the process that makes a substance magnetic (temporarily or permanently)
materialisation, materialization
the process of coming into being; becoming reality
nuclear reaction
(physics) a process that alters the energy or structure or composition of atomic nuclei
the process of becoming cloudy or opaque
the process of oscillating between states
the process of providing or combining or treating with oxygen
pair creation, pair formation, pair production
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
phase change, phase transition, physical change, state change
a change from one state (solid or liquid or gas) to another without a change in chemical composition
precession of the equinoxes
a slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation
a process that liberates or discharges something
(geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface
the physical process in which particles are deflected haphazardly as a result of collisions
raising silkworms in order to obtain raw silk
(technology) a process that acts to absorb or remove energy or a substance from a system
soak, soakage, soaking
the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid)
the process of becoming softer
the process in which one substance takes up or holds another (by either absorption or adsorption)
(technology) a process by which energy or a substance enters a system
rigidification, rigidifying, stiffening
the process of becoming stiff or rigid
(physiology) the effect of a stimulus (on nerves or organs etc.)
ecological succession, succession
(ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established
natural selection, selection, survival, survival of the fittest
a natural process resulting in the evolution of organisms best adapted to the environment
synergism, synergy
the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects
temperature change
a process whereby the degree of hotness of a body (or medium) changes
the process whereby a transducer accepts energy in one form and gives back related energy in a different form
the passage of gases through fine tubes because of differences in pressure or temperature
the process of becoming vitreous
heat sink
a metal conductor specially designed to conduct (and radiate) heat
adaptive radiation
the development of many different forms from an originally homogeneous group of organisms as they fill different ecological niches
airstream, backwash, race, slipstream, wash
the flow of air that is driven backwards by an aircraft propeller
turbulent flow
flow in which the velocity at any point varies erratically
streamline flow
flow of a gas or liquid in which the velocity at any point is relatively steady
absorption, soaking up
(chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid
stimulation of activity in an organism or chemical
the process of introducing an acyl group into a compound
adsorption, surface assimilation
the accumulation of molecules of a gas to form a thin film on the surface of a solid
(meteorology) the horizontal transfer of heat or other atmospheric properties
agglutinating activity, agglutination
the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated
gradual formation of new land, by recession of the sea or deposit of sediment
conversion of starch to sugar
(chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding
blood clotting, blood coagulation
a process in which liquid blood is changed into a semisolid mass (a blood clot)
blueing, bluing
a process that makes something blue (or bluish)
a process that impregnates something with calcium (or calcium salts)
catalysis, contact action
acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction
caries, cavity, dental caries, tooth decay
soft decayed area in a tooth; progressive decay can lead to the death of a tooth
chain reaction
a self-sustaining nuclear reaction; a series of nuclear fissions in which neutrons released by splitting one atom leads to the splitting of others
the process of forming a ring by forming one or more hydrogen bonds
chemical reaction, reaction
(chemistry) a process in which one or more substances are changed into others
the addition or substitution of chlorine in organic compounds
the breaking of a chemical bond in a molecule resulting in smaller molecules
climate change, global climate change
a change in the world's climate
column chromatography
chromatography that uses selective adsorption by a column of powders
congealment, congelation
the process of congealing; solidification by (or as if by) freezing
the transfer of heat through a fluid (liquid or gas) caused by molecular motion
chilling, cooling, temperature reduction
the process of becoming cooler; a falling temperature
corroding, corrosion, erosion
erosion by chemical action
decay of matter (as by rot or oxidation)
the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)
deamination, deaminization
removal of the amino radical from an amino acid or other amino compound
loss of calcium from bones or teeth
the process of removing a carboxyl group from a chemical compound (usually replacing it with hydrogen)
decay, disintegration, radioactive decay
the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
(pharmacology) the extraction of water-soluble drug substances by boiling
decomposition, putrefaction, rot, rotting
(biology) the process of decay caused by bacterial or fungal action
the process of making a (steel) ship's hull nonmagnetic by producing an opposing magnetic field
dehydration, desiccation, drying up, evaporation
the process of extracting moisture
the removal of iodine atoms from organic compounds
demineralisation, demineralization
the removal of minerals and mineral salts from a liquid (especially from water)
desalination, desalinisation, desalinization
the removal of salt (especially from sea water)
the gradual transformation of habitable land into desert; is usually caused by climate change or by destructive use of the land
the process of deformation that produces continents and ocean basins in the earth's crust
the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat
dilapidation, ruin
the process of becoming dilapidated
(chemistry) the temporary or reversible process in which a molecule or ion is broken down into smaller molecules or ions
the process of extracting one material from another by washing with a solvent to remove adsorbed material from an adsorbent (as in washing of loaded ion-exchange resins to remove captured ions); used to obtain uranium ions
the release of electrons from parent atoms
endoergic reaction
a nuclear reaction occurring with absorption of energy
eating away, eroding, erosion, wearing, wearing away
(geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
exoergic reaction
a nuclear reaction accompanied by the evolution of energy
a normal ongoing process that dissolves fibrin and results in the removal of small blood clots
flow into something (as a container)
fission, nuclear fission
a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
gradual internal motion or deformation of a solid body (as by heat)
fold, folding
a geological process that causes a bend in a stratum of rock
freeze, freezing
the withdrawal of heat to change something from a liquid to a solid
fusion, nuclear fusion, nuclear fusion reaction
a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy
galvanisation, galvanization
stimulation with a galvanic current
the process of changing into gas
the process of interacting with gas
the process of covering the earth with glaciers or masses of ice
heating, warming
the process of becoming warmer; a rising temperature
a chemical process that adds hydrogen atoms to an unsaturated oil
electrophoresis to separate antigens and antibodies
encrustation, incrustation
the formation of a crust
inflow, influx
the process of flowing in
the process of extracting certain active properties (as a drug from a plant) by steeping or soaking (usually in water)
the forcing of molten rock into fissures or between strata of an earlier rock formation
intumescence, intumescency, swelling
the increase in volume of certain substances when they are heated (often accompanied by release of water)
a chemical process in which the direction of optical rotation of a substance is reversed from dextrorotatory to levorotary or vice versa
the substitution or addition of iodine atoms in organic compounds
(of a ship or plane) sideways drift
(astronomy) a real or apparent slow oscillation of a moon or satellite
the conversion of a solid or a gas into a liquid
(biochemistry) dissolution or destruction of cells such as blood cells or bacteria
softening due to soaking or steeping
chemical mechanism, mechanism
the atomic process that occurs during a chemical reaction
change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances
the transduction of sound waves into electrical waves (by a microphone)
beneficiation, mineral dressing, mineral extraction, mineral processing, ore dressing, ore processing
crushing and separating ore into valuable substances or waste by any of a variety of techniques
negative feedback
feedback in opposite phase with (decreasing) the input
the chemical process in which a nitro group is added to an organic compound (or substituted for another group in an organic compound)
the process of mountain formation (especially by the upward displacement of the earth's crust)
(biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
effluence, efflux, outflow
the process of flowing out
paper chromatography
chromatography that uses selective adsorption on a strip of paper
carrier electrophoresis, paper electrophoresis
electrophoresis carried out on filter paper
peptisation, peptization
the process of converting to a sol; bringing to a colloidal solution
infiltration, percolation
the slow passage of a liquid through a filtering medium
permeation, pervasion, suffusion
the process of permeating or infusing something with a substance
petrifaction, petrification
the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape
synthesis of compounds with the aid of radiant energy (especially in plants)
polymerisation, polymerization
a chemical process that combines several monomers to form a polymer or polymeric compound
positive feedback, regeneration
feedback in phase with (augmenting) the input
(medicine) the synergistic effect of two drugs given simultaneously
the process of forming a chemical precipitate
the hydrolysis of proteins into peptides and amino acids by cleavage of their peptide bonds
pyrochemical process, pyrochemistry
processes for chemical reactions at high temperatures
(photography) the formation of a network of cracks or wrinkles in a photographic emulsion
rigor mortis
muscular stiffening that begins 2 to 4 hours after death and lasts for about 4 days
the action of forming a chelate or other stable compound with an ion or atom or molecule so that it is no longer available for reactions
the source of something's existence or from which it derives or is derived
(physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles
spoilage, spoiling
the process of becoming spoiled
forming or depositing in layers
a geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate
synaeresis, syneresis
the separation of liquid from a gel that is caused by contraction (as in cheese making)
the process of producing a chemical compound (usually by the union of simpler chemical compounds)
melt, melting, thaw, thawing
the process whereby heat changes something from a solid to a liquid
congealing tissue by heat (as by electric current)
the process of transfering an amino group from one compound to another
the process of transposing an amino group within a chemical compound
an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
centrifugation at very high speeds
evaporation, vapor, vaporisation, vaporization, vapour
the process of becoming a vapor
ferment, fermentation, fermenting, zymolysis, zymosis
a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol
Type of:
physical process, process
a sustained phenomenon or one marked by gradual changes through a series of states

n the most important or interesting work or activity in a specific area or field

“the action is no longer in technology stocks but in municipal bonds”
“gawkers always try to get as close to the action as possible”
Type of:
activity directed toward making or doing something

n a military engagement

“he saw action in Korea”
military action
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the naval battle in which Antony and Cleopatra were defeated by Octavian's fleet under Agrippa in 31 BC
Aegadean Isles
islands west of Sicily (now known as the Egadi Islands) where the Romans won a naval victory over the Carthaginians that ended the first Punic War in 241 BC
a river in ancient Thrace (now Turkey); in the mouth of this river the Spartan fleet under Lysander destroyed the Athenian fleet in the final battle of the Peloponnesian War (404 BC)
a battle in northern France in which English longbowmen under Henry V decisively defeated a much larger French army in 1415
a siege and massacre at a mission in San Antonio in 1836; Mexican forces under Santa Anna besieged and massacred American rebels who were fighting to make Texas independent of Mexico
battle of Atlanta
a siege in which Federal troops under Sherman cut off the railroads supplying the city and then burned it; 1864
battle of Austerlitz
a decisive battle during the Napoleonic campaigns (1805); the French under Napoleon defeated the Russian armies of Czar Alexander I and the Austrian armies of Emperor Francis II
a battle in which the Scots under Robert the Bruce defeated the English and assured the independence of Scotland
the peninsula and island in the Philippines where Japanese forces besieged American forces in World War II; United States forces surrendered in 1942 and recaptured the area in 1945
Battle of Britain
the prolonged bombardment of British cities by the German Luftwaffe during World War II and the aerial combat that accompanied it
Battle of Kerbala
a battle in 680 in which the grandson of Mohammed and his followers were killed
Battle of the Ardennes Bulge
a battle during World War II; in December 1944 von Rundstedt launched a powerful counteroffensive in the forest at Ardennes and caught the Allies by surprise
Battle of the Marne
a World War I battle in northwestern France where the Allies defeated the Germans in 1918
battle of the Bismarck Sea
a naval battle in World War II; Allied land-based bombers destroyed a Japanese convoy in the Bismarck Sea in March 1943
the First Duke of Marlborough and Prince Eugene of Savoy defeated the French in 1704 during the War of the Spanish Succession
Napoleon defeated the Russians in 1812 in a pitched battle at a village in western Russia west of Moscow, but irreparably weakened his army
Bosworth Field
the battle that ended the Wars of the Roses (1485); Richard III was killed and Henry Tudor was crowned as Henry VII
in 1214 the French under Philip Augustus defeated a coalition formed against him in one of the greatest battles of the middle ages
battle of Boyne
a battle in the War of the Grand Alliance in Ireland in 1690; William III defeated the deposed James II and so ended the Catholicism that had been reintroduced in England by the Stuarts
battle of Brunanburh
a battle in 937 when Athelstan defeated the Scots
Buena Vista
a pitched battle in the Mexican War in 1847; United States forces under Zachary Taylor defeated the Mexican forces under Santa Anna at a locality in northern Mexico
Battle of Bull Run
either of two battles during the American Civil War (1861 and 1862); Confederate forces defeated the Federal army in both battles
battle of Bunker Hill
the first important battle of the American War of Independence (1775) which was fought at Breed's Hill; the British defeated the colonial forces
ancient city is southeastern Italy where Hannibal defeated the Romans in 216 BC
battle of Caporetto
battle of World War I (1917); Italians were defeated by the Austrian and German forces
Caudine Forks
a battle in the Apennines in 321 BC in which the Samnites defeated the Romans
a battle in which Philip II of Macedon defeated the Athenians and Thebans (338 BC) and also Sulla defeated Mithridates (86 BC)
the battle in which Attila the Hun was defeated by the Romans and Visigoths in 451
a major battle in the American Civil War (1863); the Confederates under Robert E. Lee defeated the Union forces under Joseph Hooker
a pitched battle in the Mexican War that resulted in a major victory for American forces over Mexican forces at a locality south of Mexico City (1847)
battle of Chattanooga
in the American Civil War (1863) the Union armies of Hooker, Thomas, and Sherman under the command of Ulysses S. Grant won a decisive victory over the Confederate Army under Braxton Bragg
battle of Chickamauga
a Confederate victory in the American Civil War (1863); Confederate forces under Braxton Bragg defeated Union forces
Chino-Japanese War
a war between China and Japan (1894 and 1895) over the control of the Korean Peninsula; China was overwhelmingly defeated at Port Arthur
battle of the Coral Sea
a Japanese defeat in World War II (May 1942); the first naval battle fought entirely by planes based on aircraft carriers
battle of Cowpens
battle in the American Revolution; Americans under Daniel Morgan defeated the British
battle of Crecy
the first decisive battle of the Hundred Years' War; in 1346 the English under Edward III defeated the French under Philip of Valois
battle of Cunaxa
battle in 401 BC when the Artaxerxes II defeated his younger brother who tried to usurp the throne
battle of Cynoscephalae
the battle that ended the second Macedonian War (197 BC); the Romans defeated Philip V who lost his control of Greece
Dien Bien Phu
the French military base fell after a siege by Vietnam troops that lasted 56 days; ended the involvement of France in Indochina in 1954
in 1649 the place was captured by Oliver Cromwell, who massacred the Catholic inhabitants
Battle of El Alamein
a pitched battle in World War II (1942) resulting in a decisive Allied victory by British troops under Montgomery over German troops under Rommel
Battle of Flodden Field
a battle in 1513; the English defeated the invading Scots and James IV was killed
Battle of Fontenoy
a battle in 1745 in which the French army under Marshal Saxe defeated the English army and their allies under the duke of Cumberland
Fort Ticonderoga
a pitched battle in which American revolutionary troops captured Fort Ticonderoga from the British in 1775
Battle of Fredericksburg
an important battle in the American Civil War (1862); the Union Army under A. E. Burnside was defeated by the Confederate Army under Robert E. Lee
Battle of Gettysburg
a battle of the American Civil War (1863); the defeat of Robert E. Lee's invading Confederate Army was a major victory for the Union
Battle of Granicus River
the battle in which Alexander won his first major victory against the Persians (334 BC)
Battle of Guadalcanal
a battle in World War II in the Pacific (1942-1943); the island was occupied by the Japanese and later recaptured by American forces
Hampton Roads
a naval battle of the American Civil War (1862); the indecisive battle between the Monitor and the Merrimac
battle of Hastings
the decisive battle in which William the Conqueror (duke of Normandy) defeated the Saxons under Harold II (1066) and thus left England open for the Norman Conquest
battle of Hohenlinden
a battle during the Napoleonic Wars (1800); the French defeated the Austrians
battle of Ipsus
a battle between the successors of Alexander the Great (301 BC); Lysimachus and Seleucus defeated Antigonus and Demetrius
battle of Issus
a battle (333 BC) in which Alexander the Great defeated the Persians under Darius III
Ivry la Bataille
a battle (1590) in which the Huguenots under Henry IV defeated the Catholics under the duke of Mayenne
Battle of Jena
the battle in 1806 in which Napoleon decisively defeated the Prussians
battle of Jutland
an indecisive naval battle in World War I (1916); fought between the British and German fleets off the northwestern coast of Denmark
Kennesaw Mountain
battle of the American Civil War (1864); Union forces under William Tecumseh Sherman were repulsed by Confederate troops under Joseph Eggleston Johnston
Battle of Lake Trasimenus
a battle in 217 BC in which Hannibal ambushed a Roman army led by Flaminius
battle of Langside
(1568) Catholic forces supporting Mary Queen of Scots were routed by Protestants
Battle of Lepanto
Turkish sea power was destroyed in 1571 by a league of Christian nations organized by the Pope
battle of Leuctra
Thebes defeated Sparta in 371 BC; the battle ended Sparta's military supremacy in Greece
Lexington and Concord
the first battle of the American Revolution (April 19, 1775)
the British residents of Lucknow were besieged by Indian insurgents during the Indian Mutiny (1857)
battle of Lule Burgas
the principal battle of the Balkan Wars (1912); Bulgarian forces defeated the Turks
battle of Lutzen
a battle in the Thirty Years' War (1632); Swedes under Gustavus Adolphus defeated the Holy Roman Empire under Wallenstein; Gustavus Adolphus was killed
Macedonian War
one the four wars between Macedonia and Rome in the 3rd and 2nd centuries BC, which ended in the defeat of Macedonia and its annexation as a Roman province
Battle of Magenta
a battle in 1859 in which the French and Sardinian forces under Napoleon III defeated the Austrians under Francis Joseph I
Battle of Maldon
a battle in which the Danes defeated the Saxons in 991; celebrated in an old English poem
Manila Bay
a naval battle in the Spanish-American War (1898); the American fleet under Admiral Dewey defeated the Spanish fleet
the site of three famous battles among Greek city-states: in 418 BC and 362 BC and 207 BC
battle of Marathon
a battle in 490 BC in which the Athenians and their allies defeated the Persians
a battle in 1800 in which the French under Napoleon Bonaparte won a great victory over the Austrians
battle of Marston Moor
a battle in 1644 in which the Parliamentarians under the earl of Manchester defeated the Royalists under Prince Rupert
Metaurus River
a battle during the second Punic War (207 BC); Hannibal's brother Hasdrubal was defeated by the Romans which ended Hannibal's hopes for success in Italy
Battle of Midway
naval battle of World War II (June 1942); American planes based on land and on carriers decisively defeated a Japanese fleet on its way to invade the Midway Islands
battle of Minden
a battle in the Seven Years' War (1759) in which the English forces and their allies defeated the French
Battle of Monmouth Court House
a pitched battle in New Jersey during the American Revolution (1778) that ended with the withdrawal of British forces
Battle of Naseby
a battle in 1645 that settled the outcome of the first English Civil War as the Parliamentarians won a major victory over the Royalists
battle of Navarino
a decisive naval battle in the War of Greek Independence (1827); the Turkish and Egyptian fleet was defeated by an allied fleet of British and French and Russian warships
battle of Omdurman
a battle (1898) in which an English and Egyptian army under Kitchener defeated the Sudanese
siege of Orleans
a long siege of Orleans by the English was relieved by Joan of Arc in 1429
battle of Panipat
battle in which the ruler of Afghanistan defeated the Mahrattas in 1761
Cape Passero
a naval battle in the Mediterranean Sea off Cape Passero in which the Spanish navy was destroyed by France and England while attempting to recover Sicily and Sardinia from Italy (1719)
Petersburg Campaign
the final campaign of the American Civil War (1864-65); Union forces under Grant besieged and finally defeated Confederate forces under Lee
battle of Pharsalus
Caesar defeated Pompey in 48 BC
battle of Philippi
Octavian and Mark Antony defeated Brutus and Cassius in 42 BC
battle of the Philippine Sea
a naval battle in World War II (1944); a decisive naval victory for the United States fleet over the Japanese who were trying to block supplies from reaching American troops on Leyte
battle of Plassey
the victory in 1757 by the British under Clive over Siraj-ud-daula that established British supremacy over Bengal
battle of Plataea
a defeat of the Persian army by the Greeks at Plataea in 479 BC
the town was taken from the Turks by the Russians in 1877 after a siege of 143 days
battle of Poitiers
the battle in 1356 in which the English under the Black Prince defeated the French
Port Arthur
a battle in the Chino-Japanese War (1894); Japanese captured the port and fortifications from the Chinese
Battle of Puebla
a battle in which Mexican forces defeated the French in 1862
Battle of Pydna
a major victory by the Romans over the Macedonians in 168 BC; resulted in the downfall of the ancient Macedonian kingdom
Battle of Ravenna
a battle between the French and an alliance of Spaniards and Swiss and Venetians in 1512
Battle of Rocroi
a battle in the Thirty Years' War (1643); the French defeated the Spanish invaders
battle of Rossbach
a battle in the Seven Years' War (1757); Prussian forces under Frederick the Great defeated the armies of France and Austria
battle of St Mihiel
a battle in the Meuse-Argonne operation in World War I (1918); the battle in which American troops launched their first offensive in France
Santiago de Cuba
a naval battle in the Spanish-American War (1898); the United States fleet bottled up the Spanish ships in the harbor of Santiago de Cuba and destroyed them when they tried to escape
battle of Saratoga
a battle during the American Revolution (1777); the British under Burgoyne were defeated
battle of Sempatch
the Swiss Confederation escaped Hapsburg domination by their victory in 1386
battle of Pittsburgh Landing
the second great battle of the American Civil War (1862); the battle ended with the withdrawal of Confederate troops but it was not a Union victory
battle of the Chemin-des-Dames
a battle in World War I (May 1918); the Germans tried to attack before the American numbers were too great to defeat; the tactical success of the Germans proved to be a strategic failure
battle of Solferino
an indecisive battle in 1859 between the French and Sardinians under Napoleon III and the Austrians under Francis Joseph I
Battle of the Somme
battle in World War I (1916)
Battle of the Somme
battle of World War II (1944)
Battle of the Spanish Armada
in the English Channel a small fleet of British ships successfully defeated the large armada sent from Spain by Philip II to invade England
battle of Spotsylvania Courthouse
a battle between the armies of Grant and Lee during the Wilderness Campaign
siege of Syracuse
the Athenian siege of Syracuse (415-413 BC) was eventually won by Syracuse
siege of Syracuse
the Roman siege of Syracuse (214-212 BC) was eventually won by the Romans who sacked the city (killing Archimedes)
battle of Tannenberg
a battle in World War I (1914); decisive German victory over the Russians
battle of Tertry
a battle in France in 687 among the descendants of Clovis
battle of Teutoburger Wald
a battle in 9 AD in which the Germans under Arminius annihilated three Roman Legions
battle of Tewkesbury
the final battle of the War of the Roses in 1471 in which Edward IV defeated the Lancastrians
battle of Thermopylae
a famous battle in 480 BC; a Greek army under Leonidas was annihilated by the Persians who were trying to conquer Greece
battle of Trafalgar
a naval battle in 1805 off the southwest coast of Spain; the French and Spanish fleets were defeated by the English under Nelson (who was mortally wounded)
battle of Trasimeno
a battle in central Italy where Hannibal defeated the Romans under Flaminius in 217 BC
a naval battle in the Russo-Japanese War (1905); the Japanese fleet defeated the Russian fleet in the Korean Strait
battle of Valmy
the French defeated the Austrian and Prussian troops in 1792 (with a famous cannonade from the French artillery)
battle of Verdun
a battle in World War I (1916); in some of the bloodiest fighting in World War I the German offensive was stopped
siege of Vicksburg
a decisive battle in the American Civil War (1863); after being besieged for nearly seven weeks the Confederates surrendered
battle of Wagram
a battle in the Napoleonic campaigns (1809); Napoleon defeated the Austrians
Battle of Waterloo
the battle on 18 June 1815 in which Prussian and British forces under Blucher and the Duke of Wellington routed the French forces under Napoleon
Yalu River
a battle in the Korean War (November 1950); when UN troops advanced north to the Yalu River 200,000 Chinese troops crossed the river and drove them back
siege of Yorktown
in 1781 the British under Cornwallis surrendered after a siege of three weeks by American and French troops; the surrender ended the American Revolution
first battle of Ypres
battle in World War I (1914); heavy but indecisive fighting as the Allies and the Germans both tried to break through the lines of the others
second battle of Ypres
battle in World War I (1915); Germans wanted to try chlorine (a toxic yellow gas) as a weapon and succeeded in taking considerable territory from the Allied salient
third battle of Ypres
battle in World War I (1917); an Allied offensive which eventually failed because tanks bogged down in the waterlogged soil of Flanders; Germans introduced mustard gas which interfered with the Allied artillery
battle of Zama
the battle in 202 BC in which Scipio decisively defeated Hannibal at the end of the second Punic War
United States Civil War
civil war in the United States between the North and the South; 1861-1865
Arab-Israeli War
tension between Arabs and Israeli erupted into a brief war in June 1967; Israel emerged as a major power in the Middle East
Arab-Israeli War
Egypt and Syria attacked Israel in October 1973 (on Yom Kippur); Israel counterattacked and drove the Syrians back and crossed the Suez Canal into Egypt
Balkan Wars
two wars (1912-1913) that were fought over the last of the European territories of the Ottoman Empire and that left the area around Constantinople (now Istanbul) as the only Ottoman territory in Europe
Boer War
either of two wars: the first when the Boers fought England in order to regain the independence they had given up to obtain British help against the Zulus (1880-1881); the second when the Orange Free State and Transvaal declared war on Britain (1899-1902)
Crimean War
a war in Crimea between Russia and a group of nations including England and France and Turkey and Sardinia; 1853-1856
English Civil War
civil war in England between the Parliamentarians and the Royalists under Charles I; 1644-1648
Franco-Prussian War
a war between France and Prussia that ended the Second Empire in France and led to the founding of modern Germany; 1870-1871
French and Indian War
a war in North America between France and Britain (both aided by American Indian tribes); 1755-1760
Hundred Years' War
the series of wars fought intermittently between France and England; 1337-1453
Iran-Iraq War
a dispute over control of the waterway between Iraq and Iran broke out into open fighting in 1980 and continued until 1988, when they accepted a UN cease-fire resolution
Korean War
a war between North and South Korea; South Korea was aided by the United States and other members of the United Nations; 1950-1953
Mexican War
after disputes over Texas lands that were settled by Mexicans the United States declared war on Mexico in 1846 and by treaty in 1848 took Texas and California and Arizona and New Mexico and Nevada and Utah and part of Colorado and paid Mexico $15,000,000
Napoleonic Wars
a series of wars fought between France (led by Napoleon Bonaparte) and alliances involving England and Prussia and Russia and Austria at different times; 1799-1815
Peloponnesian War
a war in which Athens and its allies were defeated by the league centered on Sparta; 431-404 BC
Persian Gulf War
a war fought between Iraq and a coalition led by the United States that freed Kuwait from Iraqi invaders; 1990-1991
Punic War
one of the three wars between Carthage and Rome that resulted in the destruction of Carthage and its annexation by Rome; 264-241 BC, 218-201 BC, 149-146 BC
Russo-Japanese War
Japanese victory in the war with Russia (1904-1905) gave Japan power over Korea and Manchuria
Seven Years' War
a war of England and Prussia against France and Austria (1756-1763); Britain and Prussia got the better of it
Spanish-American War
a war between the United States and Spain in 1898
Spanish Civil War
civil war in Spain in which Franco succeeded in overthrowing the republican government; during the war Spain became a battleground for fascists and socialists from all countries; 1936-1939
Thirty Years' War
a series of conflicts (1618-1648) between Protestants and Catholics starting in Germany and spreading until France and Denmark and Sweden were opposing the Holy Roman Empire and Spain
Trojan War
(Greek mythology) a great war fought between Greece and Troy; the Greeks sailed to Troy to recover Helen of Troy, the beautiful wife of Menelaus who had been abducted by Paris; after ten years the Greeks (via the Trojan Horse) achieved final victory and burned Troy to the ground
Vietnam War
a prolonged war (1954-1975) between the communist armies of North Vietnam who were supported by the Chinese and the armies of South Vietnam who were supported by the United States
War of Greek Independence
the Greeks rebelled against Turkish rule in 1821; with the support of England and France and Russia they won independence in 1828 at Navarino (although the country included only half its present size)
War of the Austrian Succession
Prussia and Austria fought over Silesia and most of the rest of Europe took sides; 1740-1748
War of the League of Augsburg
an aggressive war waged by Louis XIV against Spain and the Holy Roman Empire and England and Holland and other states (1689-1697)
War of the Spanish Succession
a general war in Europe (1701-1714) that broke out when Louis XIV installed his grandson on the throne of Spain; England and Holland hoped to limit Louis' power
Wars of the Roses
struggle for the English throne (1455-1485) between the house of York (white rose) and the house of Lancaster (red rose) ending with the accession of the Tudor monarch Henry VII
War of 1812
a war (1812-1814) between the United States and England which was trying to interfere with American trade with France
First World War
a war between the allies (Russia, France, British Empire, Italy, United States, Japan, Rumania, Serbia, Belgium, Greece, Portugal, Montenegro) and the Central Powers (Germany, Austria-Hungary, Turkey, Bulgaria) from 1914 to 1918
Second World War
a war between the Allies (Australia, Belgium, Bolivia, Brazil, Canada, China, Colombia, Costa Rica, Cuba, Czechoslovakia, Dominican Republic, El Salvador, Ethiopia, France, Greece, Guatemala, Haiti, Honduras, India, Iran, Iraq, Luxembourg, Mexico, Netherlands, New Zealand, Nicaragua, Norway, Panama, Philippines, Poland, South Africa, United Kingdom, United States, USSR, Yugoslavia) and the Axis (Albania, Bulgaria, Finland, Germany, Hungary, Italy, Japan, Rumania, Slovakia, Thailand) from 1939 to 1945
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amphibious landing
a military action of coordinated land, sea, and air forces organized for an invasion
battle, conflict, engagement, fight
a hostile meeting of opposing military forces in the course of a war
blockade, encirclement
a war measure that isolates some area of importance to the enemy
defence, defense, defensive measure
(military) military action or resources protecting a country against potential enemies
EW, electronic warfare
military action involving the use of electromagnetic energy to determine or exploit or reduce or prevent hostile use of the electromagnetic spectrum
police action
a local military action without declaration of war; against violators of international peace and order
the military action of resisting the enemy's advance
saber rattling, sabre rattling
the ostentatious display of military power (with the implied threat that it might be used)
sally, sortie
a military action in which besieged troops burst forth from their position
war, warfare
the waging of armed conflict against an enemy
a formation of military planes maintained over ground operations or targets
limited war
a war whose objective is less than the unconditional defeat of the enemy
psychological warfare, war of nerves
the use of psychological tactics to destroy the opponents' morale
any catastrophically destructive battle
pitched battle
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place
naval battle
a pitched battle between naval fleets
air defense
defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness
a defensive effort
hasty defence, hasty defense
a defense organized while in contact with the enemy or when time is limited
deliberate defence, deliberate defense
a defense organized before contact is made with the enemy and while time for organization is available; usually includes a fortified zone (with pillboxes) and communication systems
biodefence, biodefense, biological defence, biological defense
procedures involved in taking defensive measures against attacks using biological agents
chemical defence, chemical defense
procedures involved in taking defensive measures against attacks using chemical agents
minelaying, mining
laying explosive mines in concealed places to destroy enemy personnel and equipment
civil war
a war between factions in the same country
armed combat, combat
an engagement fought between two military forces
chemical operations, chemical warfare
warfare using chemical agents to kill or injure or incapacitate the enemy
BW, bioattack, biologic attack, biological attack, biological warfare
the use of bacteria or viruses or toxins to destroy men and animals or food
BW defence, BW defense, biological warfare defence, biological warfare defense
defense against biological warfare
an aerial engagement between fighter planes
close fighting during the culmination of a military attack
ECM, electronic countermeasures
electronic warfare undertaken to prevent or reduce an enemy's effective use of the electromagnetic spectrum
ECCM, electronic counter-countermeasures
electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy's use of electronic warfare
ESM, electronic warfare-support measures
electronic warfare undertaken under direct control of an operational commander to locate sources of radiated electromagnetic energy for the purpose of immediate threat recognition
electromagnetic intrusion
the deliberate insertion of electromagnetic energy into transmission paths with the objective of confusing or deceiving operators
IW, information warfare
the use of information or information technology during a time of crisis or conflict to achieve or promote specific objectives over a specific adversary or adversaries
international jihad, jehad, jihad
a holy war waged by Muslims against infidels
world war
a war in which the major nations of the world are involved
naval blockade
the interdiction of a nation's lines of communication at sea by the use of naval power
beleaguering, besieging, military blockade, siege
the action of an armed force that surrounds a fortified place and isolates it while continuing to attack
hot war
actual fighting between the warring parties
Type of:
group action
action taken by a group of people

v put in effect

“He actioned the operation”
accomplish, carry out, carry through, execute, fulfil, fulfill
carry out, follow out, follow through, follow up, go through, implement, put through
pursue to a conclusion or bring to a successful issue
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get over
to bring (a necessary but unpleasant task) to an end
carry out
make perfect; bring to perfection
fulfill sexually
do, perform
get (something) done
complete, discharge, dispatch
complete or carry out
perform better or achieve a greater degree of success than expected
accomplish by rotating
underachieve, underperform
perform less well or with less success than expected
do wrongly or improperly
do one's best, give full measure, give one's best, go all out
perform a task as well as possible
apply oneself diligently
Type of:
complete, finish
come or bring to a finish or an end
effect, effectuate, set up

n an act by a government body or supranational organization

“recent federal action undermined the segregationist position”
“the United Nations must have the power to propose and organize action without being hobbled by irrelevant issues”
“the Union action of emancipating Southern slaves”
Type of:
group action
action taken by a group of people

n a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong

action at law, legal action
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antitrust case
a legal action brought against parties who are charged with limiting free competition in the market place
civil action
legal action to protect a private civil right or to compel a civil remedy (as distinguished from criminal prosecution)
a claim filed in opposition to another claim in a legal action
custody case
a legal action to determine custody (usually of children following a divorce)
lis pendens
a pending lawsuit
criminal prosecution, prosecution
the institution and conduct of legal proceedings against a defendant for criminal behavior
test case, test suit
a representative legal action whose outcome is likely to become a precedent
double jeopardy
the prosecution of a defendant for a criminal offense for which he has already been tried; prohibited in the fifth amendment to the United States Constitution
Type of:
legal proceeding, proceeding, proceedings
(law) the institution of a sequence of steps by which legal judgments are invoked

v institute legal proceedings against; file a suit against

“She actioned the company for discrimination”
litigate, process, sue
engage in legal proceedings
process fast and efficiently
Type of:
issue a challenge to

n the series of events that form a plot

“his novels always have a lot of action
Type of:
the story that is told in a novel or play or movie etc.

n the operating part that transmits power to a mechanism

“the piano had a very stiff action
action mechanism
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firing mechanism, gunlock
the action that ignites the charge in a firearm
the driving and regulating parts of a mechanism (as of a watch or clock)
piano action
action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed
pump action, slide action
action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round
an obsolete gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge
wheel lock
an obsolete gunlock using flint and a revolving wheel
Type of:
device consisting of a piece of machinery; has moving parts that perform some function

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