- chicanery: deception or trickery
- churlish: unmannered; boorish and vulgar
- circumlocution: the use of excess languagee to avoid saying something directly or truthfully
- circumvent: to evade by means of a gray area or loophole
- clairvoyance: the ability to see things beyond normal vision, events from the future, or those who have died
- clandestine: hiden, secrets
- clemency: a show of mercy or leiniency toward a wrongdoer or opponent, under appropriate circumstance
- cogent: forceful, convincing, compelling
- cognition: the process of acquiring knowledge through reason, intuition, or perception
- cohort: a supporter, accomplice
- collaborator: someone who works with other people to achieve something