What is the meaning of plump?

noun

• The sound of a sudden heavy fall.

verb

• Drop sharply.
  • usage: "The stock market plummeted"
  • synonyms: plummet
• Set (something or oneself) down with or as if with a noise.
  • usage: "He planked the money on the table"; "He planked himself into the sofa"
  • synonyms: plank, flump, plonk, plop, plunk, plump down, plunk down
• Make fat or plump.
  • usage: "We will plump out that poor starving child"
  • synonyms: fatten, fat, flesh out, fill out, plump out, fatten out, fatten up
• Give support (to) or make a choice (of. one out of a group or number)
  • usage: "I plumped for the losing candidates"
  • synonyms: go

adjective

• Sufficiently fat so as to have a pleasing fullness of figure.
  • usage: "a chubby child"; "pleasingly plump";
  • synonyms: chubby, embonpoint

adverb

• Straight down especially heavily or abruptly.
  • usage: "the anchor fell plump into the sea"; "we dropped the rock plump into the water"