Any small foam ball, soft and very light, designed for indoor use.

(tenpin bowling) The situation where all ten pins are knocked down with the second throw in a frame. The points scored by the next ball rolled (in the next frame) are added to the spare's frame's score.

(sports) A person, usually male, responsible for retrieving balls from the area of play, and returning them to the players.

(slang, vulgar) The scrotum.

A type of clay that commonly consists of 20-80% kaolinite, 10-25% mica, and 6-65% quartz.

A ball used in boules.

A spheroidal ball designed for the sport of rugby.

A large light inflatable ball, ideally suited to beach games.

A hollow, bouncy rubber ball, pressurized and covered with usually yellow felt, used in the game of tennis.

A nodule of plant material permeated with minerals found mostly in bituminous and anthracite coal seams