| Term | Definition |
| cabal (n.) | a secret group seeking to overturn something |
| calumny (n.) | a false and malicious accusation; misrepresentation |
| canard (n.) | a lie |
| candid (adj.) | impartial and honest in speech |
| capricious (adj.) | changing one's mind quickly and often |
| castigate (v.) | to punish or criticize harshly |
| caustic (adj.) | biting in wit |
| chauvinist (n.) | someone prejudiced in favor of a group to which he or she belongs |
| chicanery (n.) | deception by means of craft or guile |
| circumspect (adj.) | cautious, aware of potenial consequences |
| cloying (adj.) | sickly sweet; excessive |
| coalesce (v.) | to grow together to form a single whole |
| coffer (n.) | strongbox; large chest for money |
| cogent (adj.) | convincing and well-reasoned |
| collusion (n.) | collaboration, complicity, conspiracy |
| condone (v.) | to overlook, to pardon, to disregard |
| contumacious (adj.) | rebellious |
| convoluted (adj.) | intricate and complicated |
| corroborate (v.) | to support with evidence |
| cosset (v.) | to pamper, to treat with gentle care |
| coterie (n.) | an intimate group of persons with a similar purpose |
| craven (adj.) | lacking courage |
| credulous (adj.) | too trusting, gullible |
| cupidity (n.) | greed; strong desire |
| curmudgeon (n.) | cranky person; usually old |