Difference between Plump and Plummet

Plump

Part of speech: adjective

Definition: Having a full and rounded shape; chubby, somewhat overweight. Fat.

Part of speech: verb

Definition: 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. 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 (a vote), as a plumper.

Part of speech: adverb

Definition: Directly; suddenly; perpendicularly.

Plummet

Part of speech: verb

Definition: To drop swiftly, in a direct manner; to fall quickly.

Part of speech: noun

Definition: A piece of lead attached to a line, used in sounding the depth of water.A plumb bob or a plumb line. See under plumb, n.Hence, any weight.A piece of lead formerly used by school children to rule paper for writinghence a plummet line, a line with a plummet; a sounding line.