Ball

1. A solid or hollow sphere, or roughly spherical mass.

   a ball of spittle; a fecal ball

2. A round or ellipsoidal object.
3. (mildly, usually in the plural) A testicle.
4. A leather-covered cushion, fastened to a handle called a ballstock; formerly used by printers for inking the form, then superseded by the roller.
5. A large pill, a form in which medicine was given to horses; a bolus.

1. To form or wind into a ball.

   to ball cotton

2. To heat in a furnace and form into balls for rolling.
3. To have sexual intercourse with.
4. To gather balls which cling to the feet, as of damp snow or clay; to gather into balls.

   The horse balls; the snow balls.

5. (usually in present participle) To be hip or cool.
6. To play basketball.
7. To punish by affixing a ball and chain

interjection

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.

1. A formal dance.
2. A very enjoyable time.

   I had a ball at that concert.