(idiomatic) Alert, active, or attentive; on top of things. / (sports) Being in control of the ball. / (Australian rules football) Playing as a midfielder.

(cricket) Describing a commentary (especially on the radio) in which a commentator describes every ball bowled, every shot hit, and the positions of the fielders; normally assisted by a summarizer who describes the game as a whole and provides other comments and a scorer who keeps a record of all statistics

A formal dance. / (informal) A very enjoyable time.

A solid or hollow sphere, or roughly spherical mass. / A quantity of string, thread, etc., wound into a spherical shape. / (mathematics) In 3-dimensional Euclidean space, the volume bounded by a sphere.

(transitive) To form or wind into a ball. / (metalworking) To heat in a furnace and form into balls for rolling. / (transitive, vulgar) To have sexual intercourse with.

(Australian rules football) An appeal by the crowd for holding the ball against a tackled player. This is heard almost any time an opposition player is tackled, without regard to whether the rules about "prior opportunity" to dispose of the ball are fulfilled.

present participle of ball

(vulgar, transitive) Speaking or acting with bravado to achieve (something) / (vulgar, slang) To engage in sexual intercourse.

plural of ball / (vulgar, colloquial) The testicles. / (uncountable, vulgar, colloquial) Bravery, courage, chutzpah, or brazenness. / (uncountable, Britain, vulgar, colloquial) Rubbish, nonsense.

(slang) Very. Intensifier.