Billiard

//ˈbɪlɪəd// noun, num

noun, num ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A shot in billiards or snooker in which the cue ball strikes two other balls; a carom.
  2. 2
    Pertaining to the game of billiards. attributive

    "a billiard table; a billiard ball"

  3. 3
    A dynamical system in which a particle alternates between motion in a straight line and specular reflections from a boundary.
Adjective
  1. 1
    of or relating to billiards wordnet
Numeral
  1. 1
    10¹⁵, a thousand billion (long scale) or a million milliard. British, rare

Synonyms

All synonyms
1015combination

Example

More examples

"My father is as bald as a billiard ball."

Etymology

Etymology 1

From French billard, originally referring to the wooden cue stick, diminutive of Old French bille (“log, tree trunk”), from Vulgar Latin *bilia, probably of Gaulish origin (compare Old Irish bile (“large tree, tree trunk”)), from Proto-Celtic *belyos (“tree”), from Proto-Indo-European *bʰolh₃yos (“leaf”), from *bʰleh₃- (“blossom, flower”).

Etymology 2

From French billiard, equivalent to bi- (“two”) + -illiard.

Related phrases

billiard ballbilliard roombilliard tablecue balldynamical system

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.