Refer to the official rules for definitions and additional context.
| Term | Meaning |
|---|---|
| Pair | Any of the seven two-ball combinations that sum to 16. |
| Partner ball | The second ball in a pair. |
| Rogue ball | A ball whose partner is no longer on the table. |
| Pending partner | The partner ball to any legally pocketed ball that wasn't called, i.e. on the break or additional balls in a called shot. |
| Target ball | The partner ball to the current in-process pair. |
| At-risk ball | Rogue balls pocketed in the middle of a pair are designated at-risk. Any points for pocketing them will be awarded to the shooter's opponent if the target ball is not legally pocketed. |
| Rogue field | This term indicates that all balls on the table are rogue (with the exception of the eight-ball, if present). |