| A | B |
| contraband | anything against the law to buy or sell |
| contradict | express the opposite |
| contrarian | person who does the opposite of what is expected |
| contrary | completely different; opposite in nature, opinion, or action |
| contrast | to look at different things to see how they are opposites or not related |
| counterbalance | weight used to balance an opposite weight |
| counterclockwise | direction that is opposite of the direction the hands on the clock move |
| counterexample | example used to support a claim or statement the is the opposite of another claim |
| counterfeit | being the opposite of real; fake or artificial |
| counterintuitive | goes against your gut feeling or common sense |