| BA | the front and back covering of a book |
|---|---|
| BA | the side that goes last or is not normally seen |
| BA | the posterior part of a human (or animal) body from the neck to the end of the spine |
| BA | the series of vertebrae forming the axis of the skeleton and protecting the spinal cord |
| BA | the part of something that is furthest from the normal viewer |
| BA | (football) a person who plays in the backfield |
| BA | strengthen by providing with a back or backing |
| BA | establish as valid or genuine |
| BA | shift to a counterclockwise direction |
| BA | place a bet on |
| BA | travel backward |
| BA | cause to travel backward |