verb

Swell or cause to swell.

as she leaned forward her pullover bellied out

billow,billow out,bulge,bulge out,swell,swell out,balloon,balloon out,bag,bag out,fill out,puff out

noun

The front part of the human trunk below the ribs, containing the stomach and bowels.

his fat belly stuck out over his trousers

inside,inner part,inner area,depths,recesses,bowels,belly