| Term | Definition |
| cacophony | (N) tremendous noise, disharmonious sound |
| cajole | (V) influence or urge by gentle urging, persuading, or flattering |
| calumny | (N) an attempt to spoil someone else's reputation by spreading lies |
| capricious | (Adj) constantly changing mind |
| clemency | (N) mercy |
| cogent | (Adj) intellectually convincing |
| concomitant | (Adj) accompanying; going along with |
| conflagration | (N) great fire |
| contrite | (Adj) Broken in spirit because of a sense of sin. |
| conundrum | (N) puzzle, problem, riddle |
| credulity | (N) readiness to believe |
| cupidity | (N) greed, strong desire |
| cursory | (Adj) quick hurried |