To grow plump; to swell out.
Her cheeks have plumped.
To make plump; to fill (out) or support; often with up.
to plump oysters or scallops by placing them in fresh or brackish water
To cast or let drop all at once, suddenly and heavily.
to plump a stone into water
To give a plumper (kind of vote).
To give (a vote), as a plumper.
To favor or decide in favor of something.
To drop or fall suddenly or heavily, all at once.
The act by which something is plumped.