Definition of black ball

In snooker, the highest-value colour ball on the table, being worth seven points. In some (especially American) snooker ball sets it is numbered "7" on its surface.
The black ball (usually numbered "8") in the eight-ball variant game blackball (and its variants); also the common British term for the slightly larger but otherwise identical 8 ball in a kelly pool set (a.k.a. American or WPA pool set).

24 Random Essential Billiards Terms

To play even; without a handicap. Also called heads up.
This is a method of handicapping that designates a wild ball for a lesser player to be able to pocket at any point during a game in order to win.
This is the state after which the person returning the break has had the opportunity to catch and even the field after the breakers advantage.
The precise center of the pool table.
A ball that is easily made from many positions on the table but which is left untouched while the rack is played, so that in the event the player gets out of position, the shooter has an insurance shot. Typically an insurance ball will be in or near the jaws of a pocket.
This is a long distance shot that is given to your opponent as a challenge to make because it often works well as a safety (defense) when a better one is not available.
A player of cue sports.
This term refers to a low percentage one pocket shot.
Describes lucky or unlucky "rolls" of the cue ball; "I had good rolls all night; "that was a bad roll." However, when said without an adjective ascribing good or bad characteristics to it, "roll" usually refers to a positive outcome such as in "he got a roll".
The roll: same as the lag.
Same as centre pocket.
A joint type in which the butt and shaft screw together in a tight lock, resulting in a better shot with more hitting power.
The motion of the cue stick and the player's arm on a shot;
The strength, fluidity and finesse of a player's shooting technique; "she has a good stroke."
A combination of finesse, good judgement, accuracy and confidence.
Three Cushion is a form of carom billiards.
The object of the game is to carom the cue ball off both object balls and contact the rail cushions at least 3 times before the last object ball. A point is scored for each successful carom.
Same as cheating the pocket. Principally used in snooker.
Name for the ball that when pocketed, wins the game, or any ball that when made results in a payday such as a way in the game of Chicago.
Used when describing perfect play. "as if the balls had strings on them"
This is playing to a higher winning score than eight in the game of one pocket.
Describing a situation where a pot is made more difficult, either by a pocket being partially blocked by another ball so that not all of it is available, or the cue ball path to the object ball's potting angle involves going past another ball very closely.
Slang for a mechanical bridge.
Common slang in the US for a cheap, poorly made cue. Compare wood.
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.
An agreement between two players in a tournament, one of whom will advance to a guaranteed money prize if the match is won, to give a certain percentage of that money to the loser of the match. Also known as a saver.
A three cushion billiards shot in which the cue ball first strikes two cushions before hitting the first object ball then hits a third cushion before hitting the second object ball. So called because the shot opens up like an umbrella after hitting the third rail. Umbrella shots may be classified as inside or outside depending on which side of the first object ball the cue ball contacts.
Either of the balls on the lateral extremities of a racked set of balls in position for a break shot; the two balls at the outside of a 15-ball rack in the back row, or the balls to the left and right of the 9 ball in nine-ball's diamond rack-shaped opening set up position. In nine-ball It is seen as a reliable sign of a good break (which is normally taken from close to either cushion in the kitchen) if the opposite wing ball is pocketed.