| A | B |
| coerce | to force someone to do something against his/her will |
| cogent | forceful and convincing |
| cohere | to hold or stick together |
| collaborate | to work together on some sort of joint project |
| collaborate | to cooperate with the enemy in some kind of reasonable activity |
| compatible | capable of use with some other brand or model |
| compatible | capable of living or getting along together |
| complacent | overly self-satisfied; smug |
| concise | saying a lot in a few words |
| condone | to overlook or disregard an offense, thereby implying forgiveness, acceptance, or approval |
| confrontation | a face to face encounter ususally suggesting a hostile or defiant attitutude |
| conjecture | a conclusion based upon inadequate evidence; a guess |
| conjecture | to conclude from inadequate information |