You've grown a belly over Christmas! Time to join the gym again.
noun stomach (an organ in animals that stores food in the process of digestion)
My belly was full of wine.
noun uterus (a reproductive organ of therian mammals in which the young are conceived and develop until birth)
noun The lower fuselage of an airplane.
noun 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
noun The main curved portion of a knife blade.
noun The hollow part of a curved or bent timber, the convex part of which is the back.
verb To position one’s belly; to move on one’s belly.