| A | B |
|---|
| co-pilot | a backup driver for an airplane |
| coexist | live at the same time and place peacefully |
| co-ed (n) | a student at a school for both boys and girls |
| co-educational (co-ed) (adj) | a type of school that allows both girls and boys together |
| co-worker | a person who works with you at your job |
| coordinate (v) | organize and make an event or project run smoothly |
| coordinate (n) | a number or point on a number line or axis |
| cooperate | work together well, not cause trouble |
