| A | B |
| comport | to behave in a particular way |
| compunction | uneasiness caused be guilt; almost always used in the plural and most often used with “no” |
| concurrent | at the same time |
| congenital | existing at birth |
| conjecture | a guess; a statement based on incomplete evidence |
| conjugal | pertaining to marriage |
| contort | to twist or bend |
| contrition | regret; remorse |
| convoke | to call together; to cause to assemble |
| corporal | of the body; bodily |
| corpulent | obese; having a fat body |
| corroborate | to testify in agreement ; to back up |
| countermand | to cancel a command |
| covert | secret; hidden |
| cower | to shrink in fear |
| crass | without culture, delicacy, or sensitivity |
| credulity | gullibility; a tendency to believe to readily |
| crestfallen | dejected; dispirited |
| crux | main point; heart of the matter |
| cull | main point; heart of the matter |
| cupidity | excessive desire for wealth;greed;avarice |