Why Is Pool Called Billiards? Clearing Up the Confusion

By Sarah Miller · May 31, 2042

While the terms are often used interchangeably, pool is not technically the same as billiards. The word “billiards” originally referred to a variety of cue sports played on a table without pockets, such as carom billiards. Over time, especially in American English, “billiards” became a catch-all term for all cue sports, including pool (pocket billiards) and snooker. Thus, people say “pool is called billiards” due to regional language evolution and historical generalization.

Understanding the Confusion: Pool vs. Billiards

The confusion between “pool” and “billiards” stems from overlapping terminology and regional usage. While both involve cue sticks and balls, they differ in rules, table design, and gameplay origins.

What Is Billiards?

True billiards, or carom billiards, is played on a table with no pockets. Players score by striking both the opponent's cue ball and the object ball in a single shot. This game originated in France in the 18th century and remains popular in Europe and parts of Asia.

What Is Pool?

Pool, formally known as pocket billiards, is played on a table with six pockets. The objective varies by game type (e.g., eight-ball, nine-ball), but generally involves pocketing specific balls in a defined order. It evolved in the late 19th century in the United States and is now the most widely played cue sport globally.

Billiards (Carom): No pockets, 3 balls (white, yellow, red), played on a 10 x 5 ft table
Pool: Six pockets, 16 balls (1 cue + 15 object balls), played on a 7–9 ft table
Snooker: 22 balls, smaller pockets, played on a 12 x 6 ft table

Historical Evolution of the Terminology

The term “billiards” comes from the French “bille,” meaning “ball.” Originally, it described any game played with balls and sticks. As variations emerged, the language diverged:

In the UK and Commonwealth countries, “billiards” usually refers to the original carom game.
In the US, “billiards” is commonly used as an umbrella term for all cue sports, including pool.
“Pool” gained popularity in America due to its association with betting parlors (“poolrooms”).

Why Do Americans Call Pool “Billiards”?

The American linguistic shift occurred due to cultural and commercial factors:

Key Reasons for the Misnomer

Generalization: Early Americans used “billiards” as a broad category name.
Pool Halls: Betting parlors where people gathered to play cue games were called “poolrooms,” leading to the game being associated with the venue.
Media Influence: Movies and TV shows often use “billiards” when referring to pool, reinforcing the mislabeling.

Cue Sport	Table Size (ft)	Balls Used	Pockets	Global Players (Est.)	Origin Century
Carom Billiards	10 x 5	3	No	500,000	18th
Pool (8-Ball)	7–9	16	Yes (6)	250 million	19th
Snooker	12 x 6	22	Yes (6)	30 million	19th
English Billiards	12 x 6	3	Yes (6)	2 million	19th

Table data source:1, 2, 3

The data shows that pool dominates global participation, with over 250 million players, compared to just half a million for traditional carom billiards. Despite this, the older term “billiards” persists as a generic label, particularly in North America. The presence or absence of pockets is a key differentiator, yet casual usage often overlooks this distinction.

Regional Differences in Terminology

Language use varies significantly by region:

United States: “Billiards” = any cue sport; “Pool” = specific pocket games.
United Kingdom: “Billiards” = carom or English billiards; “Pool” or “Snooker” for their respective games.
Australia & New Zealand: Similar to the UK, but “pocket billiards” is sometimes used formally.
Asia: In Japan and Korea, “billiards” often refers to carom, while “pool” is used for American-style games.

Frequently Asked Questions About Why Pool Is Called Billiards

Is pool the same as billiards?

No, pool is a type of billiards, specifically “pocket billiards.” True billiards refers to carom games played on tables without pockets. However, in casual American English, “billiards” is often used to describe all cue sports, including pool.

Why do people call pool billiards?

Because “billiards” was historically the only term for cue sports. As pool evolved in the U.S., the original term stuck as a general label. Additionally, pool halls were once betting venues (“poolrooms”), and the broader term “billiards” was adopted colloquially.

What’s the difference between billiards, pool, and snooker?

Billiards (carom) has no pockets and uses three balls. Pool has six pockets and typically 16 balls. Snooker uses 22 balls on a larger table with tighter pockets. Each has distinct rules and scoring systems.

Do professional players distinguish between pool and billiards?

Yes, professionals make a clear distinction. Organizations like the World Pool Association (WPA) and Union Mondiale de Billard (UMB) govern separate disciplines. Carom players rarely compete in pool events and vice versa.

Is “billiards” correct when referring to pool?

In American English, it’s widely accepted in casual conversation. However, technically, it’s more accurate to say “pool” or “pocket billiards” when referring to games like eight-ball or nine-ball.