| chancy(uncertain, doubtful, dubious, tricky, questionable) |
| chew the fat(expression, idiom, consider, deliberate, argue) |
| chop logic |
| choplogic |
| come out with(verb, expression, idiom, open, present) |
| commend to attention(expression, idiom) |
| compare notes(consider, dispute, figure, review, deliberate) |
| confab(consider, dispute, deliberate, argue, discuss) |
| confabulate(consider, review, deliberate, debate, converse) |
| confer(deliberate, debate, converse) |
| confutative |
| consult with(consider, dispute, figure, review, deliberate) |
| contradictable |
| controvert(verb, consider, oppose, dispute, challenge) |
| converse(dispute, figure, deliberate, explain, debate) |
| cut and thrust(expression, idiom) |
| demonstrate(consider, dispute, deliberate, argue, discuss) |
| descant(dispute, figure, deliberate, explain, debate) |
| differ(consider, dispute, deliberate, argue, discuss) |
| difficult(adjective, tricky, sticky, challenging) |