| Ace |
A serve that the opponent cannot return; as a verb, to serve an ace. |
| Ad |
Short for advantage; see entries beginning with that word, below. |
| Advantage |
The player who scores the first point after deuce is said to have the advantage, since winning the next point will also win the game. |
| Advantage court |
The left service court, where the receiver takes service when either player has the advantage. |
| Advantage in |
Indicates that the server has the advantage; also "ad in" |
| Advantage out |
Indicates that the receiver has the advantage; also "ad out" |
| All |
Used in scoring to indicate a tie, as in "40-all." |
| Alley |
One of the areas outside the singles court that come into play in doubles. The alleys are 4 feet wide. |
| American twist |
A serve that has spin causing it to bounce high an to receiver's left, off a right-handed player's racket. Opposite of reverse twist. |
| Approach shot |
A shot hit hard and deep to allow the player to take the net. |
| Attack the net |
See take the net. |