Definition of set

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.

24 Random Essential Billiards Terms

Certain rules say you must designate your shot before taking it. Generally this is just calling the ball to be sunk in which pocket, and is not dependent on touching rails or other balls, but very well can be.
This is a match where a player must win so many games more than the other player in order to win the match.
The lamentable practice of not following through with the cue straight, but veering off in the direction of the shot's travel or the side english is applied, away from the proper aiming line; a common source of missed shots.
National Amateur Pool League.
A rack in the form of an equilateral triangle. There are different sizes of triangles for racking different games (which use different ball sizes and numbers of balls), including the fifteen ball racks for snooker and various pool games such as eight-ball and blackball. A larger triangle is used for the twenty-one ball rack for baseball pocket billiards). The smallest triangle rack is employed in three-ball (see illustration at that article) but is not strictly necessary, as the front of a larger rack can be used, or the balls can be arranged by hand.
The object balls in triangular formation, before the break shot, after being racked. See also pyramid.
Also string off. Chiefly British; Obsolete: Same as string or lag.
This term refers to a low percentage one pocket shot.
American Poolplayers Association. This is the largest association of pool players in the world, and includes The Canadian Poolplayers Association. With numerous tournaments, including the U.S. Amateur championship, they are a force on the competition scene.
The APA has established the use of the "Equalizer" which offers handicaps to players and equalizes the playing field like in golf.
To take one's two-piece cue stick apart. When done before a game's conclusion, it often indicates that the game is conceded.
A rare and very difficult trick jump shot that turns into a draw shot upon landing. Requires precise application of spin in addition to the precise application of ball pressure to effectuate the jump. Jump draws are fairly often seen in professional trick shot competition.
Any ball that may be legally struck by the cue ball.
This is a shot on the cue ball that will push through to a frozen ball on the cue ball. If the contact is made on the object ball while the cue stick is still contacting, essentially pushing the second ball, then it is usually considered a foul.

1- Shortened phrase of "ball-in-hand".

2 - In snooker, the ability to place the cue ball anywhere inside the boundaries of the D. This occurs at the start of a frame, and after the cue ball has been potted or forced off the table.
Also a short form of "Ball In Hand".

This is to use running english or soft speed in order to open up the angle on a particular bank shot.
A break shot in which the rack (pack) is disturbed as little as possible within the bounds of a legal shot, in order to force the opponent to have to break it up further. A soft break is desirable in some games, such as straight pool, in which breaking is a disadvantage; and forbidden by the open break rules of other games such as nine-ball and eight-ball.
Alternate name for the cue ball.
In carom billiards games, a term for the opponent's cue ball, which for the shooting player is another object ball along with the red.
A break shot in which the object is to leave the incoming player with no shot or a very difficult shot, such as is normally employed in the opening break of straight pool. Cf. open break.
In snooker and British pool, the successful potting of all object balls-on in a single frame.
Same as duck. Derives from an easily shot ball "hanging" in the pocket.
Chiefly American: The cushion on the head rail. Compare bottom cushion; contrast foot cushion.
Same as triple.
This is a term to describe 100 break points in a game of snooker.
Also shake bottle, pea bottle, pill bottle, kelly bottle, tally bottle. The bottle used in various games to hold numbered peas, it is employed to assign random spots to players in a roster (such as in a tournament), or to assign random balls to players of a game.
An intentionally amateurish stroke to disguise one's ability to play.