| Term | Definition |
| conglomeration | mass of material sticking together |
| congruence | correspondence of parts; harmonious relationship |
| congruent | in agreement; corresponding |
| conifer | pine tree; cone bearing tree |
| conjecture | infer on the basis of insufficient date; surmise; guess |
| conjugal | pertaining to marriage |
| conjure | summon a devil; practice magic; imagine or invent |
| connivance | pretense of ignorance of something wrong; assistance; permission to offend |
| connoisseur | person competent to act as a judge of art, etc.; a lover of an art |
| connotation | suggested or implied meaning of an expression |
| connubial | pertaining to marriage or the matrimonial state |
| consanguinity | kinship |
| conscientious | scrupulous; careful |
| conscript | draftee; person forced into military service |
| consecrate | dedicate; sanctify |
| consensus | general agreement; opinion reached by a group as a whole |
| consequential | pompous; self important |
| conservatory | school of the fine arts ( especially music or drama) |
| consign | deliver officially; entrust; set apart |
| consistency | absence of contradictions; dependability; uniformity; degree of thickness |
| console | lessen sadness or disappointment; give comfort |
| consolidation | unification; process of becoming firmer or stronger |
| consonance | harmony; agreement |
| consort | associate with (v) |
| consort | husband or wife (n) |
| conspiracy | treacherous plot |
| constituent | supporter |
| constraint | compulsion; repression of feelings |
| construe | explain; interpret |
| consummate | wholly without flaw; supremely skilled; complete and utter |
| contagion | infection |
| contaminate | pollute |
| contempt | scorn; disdain |
| contend | struggle; compete;assert earnestly |
| contention | claim; thesis |
| contentious | quarrelsome |
| contest | dispute |
| context | writing preceding and following the quoted |
| contiguous | adjacent to; touching upon |
| continence | self restrain; sexually chastity |
| contingent | dependent on; conditional (adj) |
| contingent | group that makes up part of a gathering (n) |
| contortions | twistings; distortions |
| contraband | illegal trade; smuggling; smuggled goods |
| contravene | contradict; oppose;infringe on or transgress |
| contrite | feeling regret and sorrow for one's sins or offenses; penitent |
| contrived | forced; artificial; not spontaneous |
| controvert | oppose with arguments; attempt to refute |
| contumacious | disobedient; resisting authority |
| contusion | bruise |
| conundrum | riddle; difficult problem |
| convene | assemble |
| convention | social or moral custom |
| conventional | ordinary; typical |
| converge | approach; tend to meet; come together |
| conversant | familiar with |
| converse | opposite |
| convert | one who has adopted a different religion or opinion |
| convex | curving outward |
| conveyance | vehicle; transfer |
| conviction | judgment that someone is guilt of crime; strongly held belief |
| convivial | festive; gay; characterized by joviality |
| convoke | call together |
| convoluted | coiled around; involved; intricate |
| copious | plentiful |
| coquette | flirt |
| cordial | gracious; hearfelt |
| cordon | extended line of men or fortifications to prevent access to egress |
| cornice | projecting molding on a building |
| cornucopia | horn overflowing with fruit and grain; symbol of abundance |
| corollary | consequence; accompaniment |
| corporeal | bodily; material |
| corpulent | very fat |
| correlation | mutual relationship |
| corroborate | confirm; support |
| corrugated | wrinkled; ridged |
| cosmic | pertaining to the universe |
| coterie | group that meet socially; select circle |
| countenance | approve; tolerance (v) |
| countenance | face (n) |
| countermand | cancel; revoke |
| corrode | destroy by chemical action |
| corrosive | eating a way by chemicals or disease |