Blackball was chosen because it is less ambiguous ("eight-ball pool" is too easily confused with the related "eight-ball"), and blackball is globally standardized by an International Olympic Committee-recognized governing body, the World Pool-Billiard Association (WPA); meanwhile, its ancestor, eight-ball pool, is largely a folk game, like North American , and to the extent that its rules have been codified, they have been done so by competing authorities with different rulesets.
(For the same reason, the glossary's information on eight-ball and nine-ball draws principally on the stable WPA rules, because there are many competing amateur leagues and even professional tours with divergent rules for these games.) Foreign-language terms are generally not within the scope of this list, unless they have become an integral part of billiards terminology in English (e.g.
is gently grazed across the face of both balls, freezing the away ball to the rail and moving the frozen ball away the same distance its partner was previously, in an identical but reversed configuration, in position to be struck again by the cue ball from the opposite side to repeat this pattern, back and forth.).
in which only a set number of caroms may be scored before at least one ball must leave the area. A collection bin mounted below the foot end of a table to which balls potted in any pocket will return by means of gravity assisted gutters or troughs running from each pocket opening to the bin.Ball returns have been in use since at least the 1700s.Pockets which simply collect balls are known as " ball.; pool (pocket billiards), which denotes a host of games played on a table with six pockets; and snooker, played on a large pocket table, and which has a sport culture unto itself distinct from pool.There are also hybrid pocket/carom games such as English billiards.
The term "" is sometimes used to refer to all of the cue sports, to a specific class of them, or to specific ones such as English billiards; this article uses the term in its most generic sense unless otherwise noted.
The labels "British" and "UK" as applied to entries in this glossary refer to terms originating in the UK and also used in countries that were fairly recently part of the British Empire and/or are part of the Commonwealth of Nations, as opposed to US (and, often, Canadian) terminology.
The terms "American" or "US" as applied here refer generally to North American usage.
However, due to the predominance of US-originating terminology in most internationally competitive pool (as opposed to snooker), US terms are also common in the pool context in other countries in which English is at least a minority language, and US (and borrowed French) terms predominate in carom billiards.
Similarly, British terms predominate in the world of snooker, English billiards and blackball, regardless of the players' nationalities.
The term "blackball" is used in this glossary to refer to both blackball and eight-ball pool as played in the Commonwealth, as a shorthand.