| BAC | a tooth situated at the back of the mouth |
|---|---|
| BAC | establish as valid or genuine |
| BAC | become or cause to become obstructed |
| BAC | make a copy of (a computer file) esp. for storage in another place as a security cop |
| BAC | move backwards from a certain position |
| BAC | give moral or psychological support, aid, or courage to |
| BAC | a word invented (usually unwittingly by subtracting an affix) on the assumption that a familiar word derives from it |
| BAC | (of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley |
| BAC | someone who is no longer popular |
| BAC | one after the other |
| BAC | an ache localized in the back |
| BAC | a broad band that passes over the back of a horse and supports the shafts of a vehicle |