Definition of "belly" in English

noun

1. The abdomen (especially a fat one).

   • You've grown a belly over Christmas! Time to join the gym again.

2. stomach (an organ in animals that stores food in the process of digestion)

   • My belly was full of wine.

3. (anatomy, countable) uterus (a reproductive organ of therian mammals in which the young are conceived and develop until birth)

4. The lower fuselage of an airplane.

5. The part of anything which resembles (either closely or abstractly) the human belly in protuberance or in concavity; often, the fundus (innermost part).

   • the belly of a flask, muscle, violin, sail, or ship

verb

1. To position one’s belly; to move on one’s belly.

2. (intransitive) To swell and become protuberant; to bulge or billow.

   • 1917 rev. 1925 Ezra Pound, "Canto I" winds from sternward Bore us onward with bellying canvas ...
   • 1930, Otis Adelbert Kline, The Prince of Peril, serialized in Argosy, Chapter 1, The building stood on a circular foundation, and its walls, instead of mounting skyward in a straight line, bellied outward and then curved in again at the top.

3. (transitive) To cause to swell out; to fill.