n.
Pronunciation: -y ə rdz
Function: noun plural but singular in construction
Etymology: Middle French billard billiard cue, billiards, from bille wooden stick, log ― more at BILLET
Date: 1580
: any of several games played on an oblong table by driving small balls against one another or into pockets with a cue specifically : a game in which one scores by causing a cue ball to hit in succession two object balls ― compare POOL