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

When the object balls in straight rail pool are lined up close to each other, but extending out from the cushion, and you choose to bounce off the first object ball at the cushion and then come back to graze the second object ball. This technique can be used to continue scoring points as long as you are efficient with the shot.
This is to intentionally foul by slightly moving the ball, or playing another type of illegally defensive shot in a game where the ball is just turned over to the other player. Like in one pocket, you still take the foul, but can leave the other player with a challenging shot.
The ball meant to be struck and sunk in your called shot.
This is the portion of the joint that actually connects the two sides of the cue, often called the pin or male end. This comes in a number of different sizes and shapes which some believe has an influence on the hit of the cue stick.
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.
When two objects balls are lined up so that you aim to pocket the nearest object ball, the second object ball will pocket. "That was an easy combination shot, the six ball was wired to the four ball". Also wired combination/combo, wired kiss.
Also winner. A shot in which the cue ball is used to pot another ball. In snooker and most pool games doing this is known as potting, pocketing or sinking the targeted ball. The term derives from this hazard winning the player points, while losing hazards cost the player points, in early forms of billiards. Whether the ball is an object ball or an opponent's cue ball depends upon the type of game (some have two cue balls). The move will score points in most (but not all) games in which hazards (as such) apply, such as English billiards (in which a "red winner" is the potting of the red ball and a "white winner" the potting of the opponent's cue ball, each worth a different amount of points).
A ball hanging over the edge of a pocket.
Also topspin, top-spin, top. Same as follow. Contrast bottom spin, back spin.
A players skill level, ball advantage or match advantage when using a handicapping system.
One-on-one game play.
A British term (especially in snooker) for the splitting of a group of balls when another ball is sent into them, typically with the intent of deliberately moving them with the cue ball to develop them.
This is a ball that is positioned near your pocket that can be used to kiss off of when sinking another object ball.
Same as mechanical bridge; so-called because of its typical shape.
Ten Ball is a rotation is a rotation game very similar to nine-ball, using ten balls instead of nine, and with the 10 ball instead of the 9 as the "money ball".
The object of the game is pocket the 10-ball on any legal shot.
The World Professional Billiards and Snooker Association, founded in 1968 and based in Bristol, England, United Kingdom is the governing body of professional snooker and English billiards. It sets the sports' rules, organises tournaments and the pro-am and pro tours, and engages in various promotional activities.
This the area behind the pocket points before the pocket. The ball can get behind here and rest waiting to be pocketed, or the cue ball can get corner hooked in this location. Different tables feature a smaller or larger area here which can make these situations more or less achievable.
This is a version of double elimination tournament play that splits the field of competitors into two brackets that come together for a single elimination championship game.
This is a type of shot that is executed by an object ball caroming off of another object ball in order to gain the pocket.
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.
A (principally American) term in eight-ball for either of the set of seven balls (stripes or solids) that must be cleared before sinking the 8 ball. Borrowed from card games. Generally used in the generic, especially in rulesets or articles, rather than colloquially by players. See also group for the British equivalent.
This is to step up to the table and successfully execute a difficult shot.
The profile of the shaft of the cue as it as it increases in diameter from the tip to the joint. A "fast" or "slow" taper refers to how quickly the diameter increases. A "pro" taper describes a shaft that tapers rapidly from the joint size to the tip size so as to provide a long, untapered stroking area.
To play a shot using a more difficult application of stroke and speed to achieve a certain desired position for the next shot, even at the expense of or sharply increasing the likelihood of a miss.