The following is a glossary of traditional English-language terms used in the three overarching cue sports disciplines: carom billiards referring to the various carom games played on a billiard table without pockets; pool, 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 games such as English billiards that include aspects of multiple disciplines.
Carom billiards, also called French billiards and sometimes carambole billiards, is the overarching title of a family of cue sports generally played on cloth-covered, pocketless billiard tables. In its simplest form, the object of the game is to score points or "counts" by caroming one's own cue ball off both the opponent's cue ball and the object ball on a single shot. The invention as well as the exact date of origin of carom billiards is somewhat obscure but is thought to be traceable to 18th-century France.
There is a large array of carom billiards disciplines. Some of the more prevalent today and historically are (chronologically by apparent date of development): straight rail, one-cushion, balkline, three-cushion and artistic billiards.
Pool is a series of cue sports played on a billiard table. The table has six pockets along the rails, into which balls are shot. Of the many different pool games, the most popular include: eight-ball, blackball, nine-ball, ten-ball, seven-ball, straight pool, one-pocket, and bank pool. Eight-ball is the most frequently played discipline of pool, and it is often thought of as synonymous with "pool".
The generic term pocket billiards is sometimes also used, and favored by some pool-industry bodies, but is technically a broader classification, including games such as snooker, Russian pyramid, and kaisa, which are not referred to as pool games. There are also hybrid games combining aspects of both pool and carom billiards, such as American four-ball billiards, bottle pool, cowboy pool, and English billiards.
Cue sports are a wide variety of games of skill played with a cue stick, which is used to strike billiard balls and thereby cause them to move around a cloth-covered table bounded by elastic bumpers known as cushions. Cue sports, a category of stick sports, may collectively be referred to as billiards, though this term has more specific connotations in some English dialects.
There are three major subdivisions of games within cue sports:
A card sharp (also card shark, sometimes hyphenated or spelled as a single word) is a person who uses skill or deception to win at card games (such as poker). "Sharp" and "shark" spellings have varied over time and by region.
The label is not always intended as pejorative, and is sometimes used to refer to practitioners of card tricks for entertainment purposes. In general usage, principally in American English and more commonly with the "shark" spelling, the term has also taken on the meaning of an expert card gambler who takes advantage of less-skilled players, also called an "advantage player", without any implication of actual cheating at cards, in much the same way that "pool shark" or "pool hustler" can (especially when used by non-players) be intended to refer to a skilled player rather than a cheater or swindler. The synonym to "card sharp", "blackleg", when used with reference to card-playing and swindlers, has pejorative connotations.
Russian pyramid, also known as Russian billiards (Russian: ру́сский билья́рд, russky bilyard), is a form of billiards played on a large billiard table with narrow pockets. It is played across Russia and several former Soviet/Eastern Bloc countries. In the West, the game is known as pyramid billiards, or simply pyramid.
Snooker (pronounced UK: /ˈsnuːkər/ SNOO-kər, US: /ˈsnʊkər/ SNUUK-ər) is a cue sport played on a rectangular billiards table covered with a green cloth called baize, with six pockets: one at each corner and one in the middle of each long side. First played by British Army officers stationed in India in the second half of the 19th century, the game is played with 22 balls, comprising a white cue ball, 15 red balls and six other balls—a yellow, green, brown, blue, pink and black—collectively called 'the colours'. Using a snooker cue, the individual players or teams take turns to strike the cue ball to pot other balls in a predefined sequence, accumulating points for each successful pot and for each foul committed by the opposing player or team. An individual frame of snooker is won by the player who has scored the most points, and a snooker match ends when a player wins a predetermined number of frames.
In 1875, army officer Neville Chamberlain, stationed in India, devised a set of rules that combined black pool and pyramids. The word snooker was a well-established derogatory term used to describe inexperienced or first-year military personnel. In the early 20th century, snooker was predominantly played in the United Kingdom, where it was considered a "gentleman's sport" until the early 1960s before growing in popularity as a national pastime and eventually spreading overseas. The standard rules of the game were first established in 1919 when the Billiards Association and Control Club was formed. As a professional sport, snooker is now governed by the World Professional Billiards and Snooker Association.
A billiard ball is a small, hard ball used in cue sports, such as carom billiards, pool, and snooker. The number, type, diameter, color, and pattern of the balls differ depending upon the specific game being played. Various particular ball properties such as hardness, friction coefficient, and resilience are important to accuracy.
Eight-ball (also spelled 8-ball or eightball, and sometimes called solids and stripes, spots and stripes, bigs and smalls, big ones and little ones, or rarely highs and lows) is a discipline of pool played on a billiard table with six pockets, cue sticks, and sixteen billiard balls (a cue ball and fifteen object balls). The object balls include seven solid-colored balls numbered 1 through 7, seven striped balls numbered 9 through 15, and the black 8 ball. After the balls are scattered with a break shot, a player is assigned either the group of solid or striped balls once they have legally pocketed a ball from that group. The object of the game is to legally pocket the 8-ball in a "called" pocket, which can only be done after all of the balls from a player's assigned group have been cleared from the table.
The game is the most frequently played discipline of pool, and is often thought of as synonymous with "pool". The game has numerous variations, mostly regional. It is the second most played professional pool game, after nine-ball, and for the last several decades ahead of straight pool.