impact

The noun impact can refer to a physical force (like a collision), an influence (a bad role model or a hero), or a strong effect (a foot of snow will have an impact on driving conditions).

Impact is used most often as a noun. A good teacher might have an impact (influence) on a struggling student. The moment two comets collide is called the "moment of impact." But this versatile word can also be used as a verb, though many people prefer to use its synonyms instead: "affect," "bear upon," or "touch on." Impacted teeth are wedged together or stuck behind each other.

DEFINITIONS OF: impact

1

n the striking of one body against another

Types:
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blow, bump
an impact (as from a collision)
slam
a forceful impact that makes a loud noise
jar, jolt, jounce, shock
a sudden jarring impact
concussion
any violent blow
rap, strike, tap
a gentle blow
bang, bash, belt, knock, smash
a vigorous blow
buffeting, pounding
repeated heavy blows
sideswipe
a glancing blow from or on the side of something (especially motor vehicles)
slap, smack
a blow from a flat object (as an open hand)
Type of:
contact, impinging, striking
the physical coming together of two or more things

n a forceful consequence; a strong effect

“the book had an important impact on my thinking”
Synonyms:
wallop
Type of:
consequence, effect, event, issue, outcome, result, upshot
a phenomenon that follows and is caused by some previous phenomenon

n influencing strongly

Synonyms:
encroachment, impingement
Type of:
influence
causing something without any direct or apparent effort

n the violent interaction of individuals or groups entering into combat

Synonyms:
shock
Type of:
combat, fight, fighting, scrap
the act of fighting; any contest or struggle

v press or wedge together; pack together

Type of:
force, squeeze, wedge
squeeze like a wedge into a tight space

v have an effect upon

Synonyms:
affect, bear on, bear upon, touch, touch on
Types:
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strike a blow
affect adversely
repercuss
cause repercussions; have an unwanted effect
tell on
produce an effect or strain on somebody
redound
have an effect for good or ill
excite, stimulate
act as a stimulant
process, treat
subject to a process or treatment, with the aim of readying for some purpose, improving, or remedying a condition
hydrolise, hydrolize
make a compound react with water and undergo hydrolysis
color, colour, distort, tinge
affect as in thought or feeling
endanger, expose, peril, queer, scupper
put in a dangerous, disadvantageous, or difficult position
hit, strike
affect or afflict suddenly, usually adversely
subject
cause to experience or suffer or make liable or vulnerable to
bother, discommode, disoblige, incommode, inconvenience, put out, trouble
to cause inconvenience or discomfort to
act upon, influence, work
have and exert influence or effect
slam-dunk
make a forceful move against
propagate
cause to propagate, as by grafting or layering
bacterise, bacterize
subject to the action of bacteria
iodise, iodize
treat with iodine
nitrate
treat with nitric acid, so as to change an organic compound into a nitrate
tank
treat in a tank
aerate, oxygenate, oxygenise, oxygenize
impregnate, combine, or supply with oxygen
mercerise, mercerize
treat to strengthen and improve the luster
malt
treat with malt or malt extract
fluoridate, fluoridise, fluoridize
subject to fluoridation; treat with fluoride
creosote
treat with creosote
chlorinate
treat or combine with chlorine
carbonate
treat with carbon dioxide
camphorate
treat with camphor
bromate, brominate
treat with bromine
ammoniate
treat with ammonia
irradiate, ray
expose to radiation
scald
treat with boiling water
invigorate, quicken
give life or energy to
refine
treat or prepare so as to put in a usable condition
innervate
stimulate to action
irritate
excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus
nitrify, nitrogenise, nitrogenize
treat with nitrogen or a nitrogen compound
reverberate
treat, process, heat, melt, or refine in a reverberatory furnace
curry
treat by incorporating fat
seed
sprinkle with silver iodide particles to disperse and cause rain
dose
treat with an agent; add (an agent) to
sulfur, sulphur
treat with sulphur in order to preserve
vulcanise, vulcanize
subject to vulcanization
chrome
treat with a chromium compound
bituminise, bituminize
treat with bitumen
Agenise, Agenize
age or bleach flour with Agene (nitrogen trichloride)
run
cause to perform
carboxylate
treat (a chemical compound) with carboxyl or carboxylic acid
saccharify
convert into a simple soluble fermentable sugar by hydrolyzing a sugar derivative or complex carbohydrate
beneficiate
process (ores or other raw materials), as by reduction
prejudice, prepossess
influence (somebody's) opinion in advance
compromise
expose or make liable to danger, suspicion, or disrepute
digest
convert food into absorbable substances
vitriol
expose to the effects of vitriol or injure with vitriol
put
cause (someone) to undergo something
shipwreck
cause to experience shipwreck
refract
subject to refraction
expose
expose or make accessible to some action or influence
expose
expose to light, of photographic film
fume, fumigate
treat with fumes, expose to fumes, especially with the aim of disinfecting or eradicating pests
air-condition
control the humidity and temperature of
form, imprint
establish or impress firmly in the mind
militate
have force or influence; bring about an effect or change
manipulate, pull strings, pull wires
influence or control shrewdly or deviously
color, colour
modify or bias
swing, swing over
influence decisively
blackjack, blackmail, pressure
exert pressure on someone through threats
carry, persuade, sway
win approval or support for
get at
influence by corruption
fix
influence an event or its outcome by illegal means
distress, straiten
bring into difficulties or distress, especially financial hardship
dominate
be in control
incur
make oneself subject to; bring upon oneself; become liable to
Type of:
alter, change, modify
cause to change; make different; cause a transformation

WORD FORMS

n
the striking of one body against another
1 impact
v
press or wedge together; pack together
2 impact
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