beef

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

• noun A full-grown steer, bull, ox, or cow, especially one intended for use as meat.
• noun The flesh of a slaughtered full-grown steer, bull, ox, or cow.
• noun Informal Human muscle; brawn.
• noun Slang A complaint.
• intransitive verb To complain.

from The Century Dictionary.

• noun An animal of the bovine genus, whether ox, bull, or cow, in the full-grown state.
• noun The flesh of an ox, bull, or cow when killed.
• noun A name given by quarrymen to certain beds of fibrous carbonate of lime occurring in England in the middle division of the Purbeck series, the highest part of the Jurassic.
• noun Brawn; muscularity; weight and strength combined: as, the crew is lacking in beef.

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

• noun An animal of the genus Bos, especially the common species, Bos taurus, including the bull, cow, and ox, in their full grown state; esp., an ox or cow fattened for food.
• noun The flesh of an ox, or cow, or of any adult bovine animal, when slaughtered for food.
• noun Applied colloquially to human flesh.
• adjective Of, pertaining to, or resembling, beef.
• adjective essence of beef, or strong beef broth.

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

• noun uncountable The meat from a cow, bull or other bovines.
• noun uncountable Bovine animals.
• noun archaic, countable, plural: beef or beeves A single bovine (cow or bull) being raised for its meat.
• noun plural: beefs a complaint or disagreement
• noun Muscle, effort, force.
• verb intransitive To complain.
• verb transitive To add weight or strength to, usually as beef up.
• verb intransitive, slang To fart.
• verb intransitive (chiefly Yorkshire) To cry
• adjective Being a bovine animal that is being raised for its meat.
• adjective Producing or known for raising lots of beef.
• adjective Consisting of or containing beef as an ingredient.

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

• verb complain
• noun meat from an adult domestic bovine
• noun informal terms for objecting
• noun cattle that are reared for their meat