/ Dictionary / Index M moppet: Meaning and Definition of Find definitions for: mop•pet Pronunciation: (mop'it), [key] — n. a young child. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: moppet (Thesaurus) mopper-up mopping-up Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language