the.com/billiard room

means A dedicated room built around a billiard table, where people gather ostensibly to play a game of skill with cues and balls.

from From 'billiard,' tracing back through French 'billard' — originally the word for the wooden cue stick itself, from 'bille' meaning a small ball or log of wood. The room name followed naturally once houses grand enough to spare a whole chamber for a table became fashionable, mostly among the wealthy in Europe from around the 1600s onward, as the game moved indoors from its rougher lawn-game ancestors.