ball boy
noun
Tennis.
an attendant, usually a boy or young man, employed to retrieve balls and supply players with them.
Baseball.
an attendant, usually a boy or young man, who retrieves foul balls and brings the umpire new balls during the game.
Origin of ball boy
First recorded in 1900–05
Words nearby ball boy
ball,
ball ammunition,
ball and chain,
ball and ring,
ball bearing,
ball boy,
ball clay,
ball club,
ball cock,
ball control,
ball fern
British Dictionary definitions for ball boy
ball boy
ball girl
noun
(in sport, esp tennis) a person who retrieves balls that go out of play