| certification(noun, information, reason, picture, evidence) |
| challenge(noun, insult, puzzle, stimulus, affront) |
| chapter and verse(noun, expression, idiom, information, reason) |
| charade(difficulty, question, secret, puzzle, obscurity) |
| charm(noun, attraction, magic, obsession, captivation) |
| charmer |
| chiller(difficulty, anxiety, confusion, doubt, question) |
| churl |
| cliff-hanger(noun, anxiety, confusion, challenge, doubt) |
| cliffhanger(difficulty, question, secret, puzzle, knot) |
| cloak and dagger(expression, idiom, anxiety, confusion, doubt) |
| clue(noun, information, mark, sign, reason) |
| clutcher |
| compulsion(noun, love, passion, desire, thing) |
| confirmation(noun, information, mark, sign, reason) |
| contraption(noun, means, device, machine, tackle) |
| corroboration(noun, information, mark, sign, reason) |
| craving(noun, love, passion, desire, thing) |
| craze(noun, love, passion, desire, thing) |
| craziness(noun, love, passion, desire, thing) |