"Conjunction Junction, what's your function? Hooking up words and phrases and clauses." These lyrics from Schoolhouse Rock sum it up: a conjunction is all about joining things together.

The words and, but, and or are conjunctions, linking words and phrases together to form sentences. Other kinds of conjunctions bring groups together, such as organizations working in conjunction to present a big event; or bring objects together, like a conjunction in a house's plumbing system where pipes meet. Conjunction could also mean things happening at the same time, such as free Schoolhouse Rock screenings that are presented in conjunction with a National Grammar Day celebration.

Primary Meanings of conjunction

the state of being joined together
the temporal property of two things happening at the same time
Full Definitions of conjunction

n the state of being joined together

colligation, conjugation, junction
anastomosis, inosculation
a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle
myoneural junction, neuromuscular junction
the junction between a nerve fiber and the muscle it supplies
Type of:
unification, union
the state of being joined or united or linked

n something that joins or connects

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contact, tangency
(electronics) a junction where things (as two electrical conductors) touch or are in physical contact
junction by which parts or objects are joined together
barrier strip, junction barrier
a junction unit for connecting 2 cables without the need for plugs
splice, splicing
a junction where two things (as paper or film or magnetic tape) have been joined together
a junction between two dissimilar metals across which a voltage appears
ball-and-socket joint
a joint that can rotate within a socket
butt, butt joint
a joint made by fastening ends together without overlapping
breaker point, distributor point, point
a contact in the distributor; as the rotor turns its projecting arm contacts them and current flows to the spark plugs
electrical contact
contact that allows current to pass from one conductor to another
flexible joint, hinge
a joint that holds two parts together so that one can swing relative to the other
hinge joint, knuckle joint
a joint allowing movement in one plane only
lap joint, splice
joint made by overlapping two ends and joining them together
miter, miter joint, mitre, mitre joint
joint that forms a corner; usually both sides are bevelled at a 45-degree angle to form a 90-degree corner
mortise joint, mortise-and-tenon joint
a joint made by inserting tenon on one piece into mortise holes in the other
p-n junction
the junction between a p-type semiconductor and an n-type semiconductor
rabbet joint
a joint formed by fitting together two rabbeted boards
scarf, scarf joint
a joint made by notching the ends of two pieces of timber or metal so that they will lock together end-to-end
joint consisting of a line formed by joining two pieces
short, short circuit
accidental contact between two points in an electric circuit that have a potential difference
sound bow
contact (the part of a bell) against which the clapper strikes
pole, terminal
a contact on an electrical device (such as a battery) at which electric current enters or leaves
toggle joint
a joint made by two arms attached by a pivot; used to apply pressure at the two ends by straightening the joint
the part (as of a wheel or shoe) that makes contact with the ground
a metal joint formed by softening with heat and fusing or hammering together
contact arm, wiper, wiper arm
contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet
Type of:
connecter, connection, connective, connector, connexion
an instrumentality that connects

n an uninflected function word that serves to conjoin words or phrases or clauses or sentences

conjunctive, connective, continuative
coordinating conjunction
a conjunction (like `and' or `or') that connects two identically constructed grammatical constituents
subordinate conjunction, subordinating conjunction
a conjunction (like `since' or `that' or `who') that introduces a dependent clause
Type of:
closed-class word, function word
a word that is uninflected and serves a grammatical function but has little identifiable meaning

n the grammatical relation between linguistic units (words or phrases or clauses) that are connected by a conjunction

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coordinating conjunction
the coordination by conjunction of linguistic units of the same status
subordinating conjunction
the subordination that occurs when a conjunction makes one linguistic unit a constituent of another
copulative conjunction
the conjunctive relation of units that expresses the addition of their meanings
disjunctive conjunction
the conjunctive relation of units that expresses the disjunction of their meanings
adversative conjunction
the conjunctive relation of units that expresses the opposition of their meanings
Type of:
grammatical relation
a linguistic relation established by grammar

n the temporal property of two things happening at the same time

co-occurrence, coincidence, concurrence
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occurrence or existence together or in connection with one another
the property of partial coincidence in time
contemporaneity, contemporaneousness
the quality of belonging to the same period of time
occurring together or simultaneously
Type of:
simultaneity, simultaneousness
happening or existing or done at the same time

n (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac

inferior conjunction
(astronomy) the alignment of the Earth and a planet on the same side of the sun
superior conjunction
(astronomy) the alignment of the Earth and a planet on the opposite side of the sun
Type of:
encounter, meeting
a casual or unexpected convergence

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