adj. Well rounded or filled out; full; fleshy; fat; as, a plump baby; plump cheeks.
- n. A knot; a cluster; a group; a crowd; a flock; as, a plump of trees, fowls, or spears.
- vb. To grow plump; to swell out; as, her cheeks have plumped. To drop or fall suddenly or heavily, all at once. To give a plumper.
- vb. To make plump; to fill (out) or support; - often with up. To cast or let drop all at once, suddenly and heavily; as, to plump a stone into water. To give as a plumper.
- adv. Directly; suddenly; perpendicularly.