A player of a ball game; especially a basketball, baseball, or football player.

(US, uncountable) A form of baseball, played by young children, in which the batter hits a ball placed on a tee rather than being thrown by a pitcher.

(sports) An act of catching or obtaining possession of the ball in a skillful manner; the action of a ball hawk.

A large, heavy sphere of leather or plastic filled with sand and used for athletic training or physical rehabilitation.

A large air–filled rubber ball that provides a soft sitting surface for a woman during labour.

(nautical) A sphere, usually black, that is either attached to the vessel or to the anchor buoy, used as a signal to state the vessel is anchored

A simplified game of pool in which players attempt to pot three object balls in as few shots as possible.

(literally) the opposite end or side of a ball. / (idiomatic, sports) used after discussing either offense or defense to imply the other.

(idiomatic) It is someone's turn to do something; often making a decision.

Synonym of get the ball rolling.