1.Definition: a part that bulges deeply

"The belly of a sail"

Category: General

2.Definition: a protruding abdomen

Related Noun(s):paunch

Category: General

3.Definition: the hollow inside of something

"In the belly of the ship"

Category: Places

4.Definition: the region of the body of a vertebrate between the thorax and the pelvis

Related Noun(s):abdomen, stomach, venter

Category: General

5.Definition: the underpart of the body of certain vertebrates such as snakes or fish

Category: Animals