bull

1. an uncastrated male bovine animal.

   bull calves

2. a bullseye.

   aim for the bull!

3. a person who buys shares hoping to sell them at a higher price later.

1. push or move powerfully or violently.

   he bulled the motor cycle clear of the tunnel

2. (of a cow) behave in a manner characteristic of being on heat.

late Old English bula (recorded in place names), from Old Norse boli . Compare with bullock.

1. a papal edict.

   the Pope issued a bull of excommunication

Middle English: from Old French bulle, from Latin bulla ‘bubble, rounded object’ (in medieval Latin ‘seal or sealed document’).

1. stupid or untrue talk or writing; nonsense.

   much of what he says is sheer bull

early 17th century: of unknown origin.