beast

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An animal other than a human, especially a large four-footed mammal.
• noun Animal nature as opposed to intellect or spirit.
• noun A very large or powerful person or thing.
• noun Something of a specified kind.
• noun A brutal, contemptible person.

from The Century Dictionary.

• noun A living being; an animal: in this extended sense now only in dialectal or colloquial use.
• noun Any four-footed animal, as distinguished from fowls, insects, fishes, and man: as, beasts of burden; beasts of the chase; beasts of the forest. It is applied chiefly to large animals.
• noun Any irrational animal, as opposed to man, as in the phrase man and beast, where beast usually means horse.
• noun plural In rural economy, originally all domestic animals, but now only cattle; especially, fatting cattle as distinguished from other animals.
• noun In a limited specific use, a horse: as, my beast is tired out.
• noun Figuratively, a brutal man; a person rude, coarse, filthy, or acting in a manner unworthy of a rational creature.
• noun [In this use also spelled as orig. pron., bāste, ⟨ F. beste, now béte, in same sense.] An old game of cards resembling loo. A penalty or forfeit at this game, and also in ombre and quadrille.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete Any living creature; an animal; -- including man, insects, etc.
• noun Any four-footed animal, that may be used for labor, food, or sport.
• noun any animal other than a human; -- opposed to man.
• noun Fig.: A coarse, brutal, filthy, or degraded fellow.
• noun obsolete A game at cards similar to loo.
• noun A penalty at beast, omber, etc. Hence: To be beasted, to be beaten at beast, omber, etc.
• noun [Obs.] the lion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any animal other than a human; usually only applied to land vertebrates. Especially large or dangerous four-footed ones
• noun A domestic animal, especially a bovine farm animal:
• noun A person who behaves in a violent, antisocial or uncivilized manner.
• noun slang A large and impressive automobile
• noun slang A sex offender.
• verb UK, military to impose arduous exercises, either as training or as punishment.
• adjective slang great; excellent; powerful

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a living organism characterized by voluntary movement
• noun a cruelly rapacious person