belly

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

• noun The underside of the body of certain vertebrates, such as snakes and fish.
• noun The stomach.
• noun An appetite for food.
• noun The womb; the uterus.
• noun A part that bulges or protrudes.
• noun Anatomy The bulging, central part of a muscle.
• noun A deep or central interior space.
• intransitive & transitive verb To bulge or cause to bulge. synonym: bulge.

from The Century Dictionary.

• To fill; swell out.
• To swell and become protuberant, like the belly; bulge out.
• noun That part of the human body which extends from the breast to the groin, and contains the bowels: the part of the trunk between the diaphragm and the pelvis, considered as to its front and side walls and its cavity and contents; the abdomen. See cut under abdomen.
• noun The part of any animal which corresponds to the human belly; the abdomen in general.
• noun The stomach with its adjuncts: as, a hungry belly.
• noun The womb.
• noun The fleshy part of a muscle, as distinguished from its tendinous portion: as, the anterior belly of the digastricus muscle.
• noun The hollow or interior of an inclosed place.
• noun The part of anything which resembles the belly in protuberance or cavity, as of a bottle, a tool, a sail filled by the wind, a blast-furnace, etc.
• noun In technology, the inner, lower, or front surface or edge of anything.

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

• intransitive verb To swell and become protuberant, like the belly; to bulge.
• transitive verb rare To cause to swell out; to fill.
• noun That part of the human body which extends downward from the breast to the thighs, and contains the bowels, or intestines; the abdomen.
• noun The under part of the body of animals, corresponding to the human belly.
• noun obsolete The womb.
• noun The part of anything which resembles the human belly in protuberance or in cavity; the innermost part.
• noun (Arch.) The hollow part of a curved or bent timber, the convex part of which is the back.
• noun a doublet of the 16th century, hanging down so as to cover the belly.
• noun the chafing of a horse's belly with a girth.
• noun [Ludicrous] food.
• noun a worm that breeds or lives in the belly (stomach or intestines).

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

• noun The abdomen.
• noun The stomach, especially a fat one.
• noun The lower fuselage of an airplane.
• verb To position one's belly.
• verb To swell and become protuberant; to bulge.

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

• noun a part that bulges deeply
• verb swell out or bulge out
• noun a protruding abdomen
• noun the region of the body of a vertebrate between the thorax and the pelvis
• noun the hollow inside of something
• noun the underpart of the body of certain vertebrates such as snakes or fish