Definition of leave

The cue ball's position after a shot. "Good" or "bad" in reference to a leave describe respectively and advantageous or disadvantageous position for the next shot, or to leave an incoming opponent safe.

24 Random Essential Billiards Terms

In one pocket pool this means that you change your play based on where the count is during the game. If you are ahead you might choose more conservative shots, and if you are behind you could choose more aggressive shots.
Also string off. Chiefly British; Obsolete: Same as string or lag.
A shot in which if the target is missed, the opponent is safe or will not have a desirable shot;
A shot in which there are two ways to score;
A shot in which a second ball is targeted to be pocketed, broken out of a cluster, repositioned or some other secondary goal is also intended.
In the UK, one of the two pockets one either side of a pool, snooker or English billiards table halfway up the long rails.
This refers to how a player is playing on a particular occasion (a player's skill level). If their game is good, then they are at a high speed, but if they are not playing up to their potential, then they are playing at a lower speed.
This is playing to a higher winning score than eight in the game of one pocket.
Same as duck. Derives from an easily shot ball "hanging" in the pocket.
The pool player who is at the table taking their shot.
This is a bank in which the object ball hit will cross the path of the cue ball on the way to its destination.
A predetermined number of games, usually played for a specified sum of money. Contrast race (a predetermined number of wins). Informally, sets may refer to gambling more generally, as in "I've been playing sets all day", even when the format is actually races or single games.
Displacement of the cue ball's path away from the parallel line formed by the cue stick's direction of travel; occurs every time english is employed. The degree of deflection increases as the amount of english applied increases. It is also called squirt, typically in the United States.
This is what is brought to the table if you are playing at your best potential.
A set of paired balls in the game of cribbage pool that have a number value which combined equal 15. For example, the 8 ball and the 7 ball added together equal 15 and thus constitute one cribbage if pocketed in succession.
An intentionally amateurish stroke to disguise one's ability to play.
Accidentally causing the cue ball or any object ball to leave the table. It is normally a foul.
Also known as a "Dirty Defense" or "Dirty Foul". To intentionally miss a shot (that results in a foul) in order to create a position for the cue ball that makes it hard for the other player to execute their shot. Not to be confused with a "Safety", since a safety is a legal hit.
The ball meant to be struck and sunk in your called shot.
Also last pocket. A common rule in informal bar pool, especially bar/pub eight-ball, in which the money ball must be pocketed (potted) in the same pocket as the shooter's last object ball (each player may be said to eventually "own" a pocket, for the duration of the game, in which their 8 ball shot must be played if they have already run out their suit). The variant is not extremely common in the United States or the UK, but is near-universal in much of Latin America (where two cue ball scratches are permitted when attempting the 8 ball shot and count as simple fouls, with only a third scratch constituting a loss of game). Last pocket is also common in North Africa. Last-pocket rules require careful position play, and frequently result in bank and kick shots at the 8 ball.
A successful attempt to get out of a snooker.
The European Pocket Billard Federation is the European governing body for pocket billiards. EPBF is also one of the member organization of the WPA (World Pool Billard Association)
Four-ball is a carom billiards game. The game is played on a pocketless table with four balls, usually one light red, one dark red, and two whites (or just two reds and two whites). Each player is assigned one of the white balls as his own cue ball. A point is scored when a shooter caroms on any two other balls. Two points are scored when the player caroms on each of the three other balls.
Chiefly British. This is a shot in a snooker game where the first object ball hit contacts another object ball and the second one is pocketed. If both of the balls are red, or if the second ball would be on if the first ball had not been deemed free then it is an allowed shot.
This is a tip tool for cleaning the edges of you tip after mushrooming occurs.
A set practice routine.
In British terminology, a bank shot.