/ Dictionary / Index M mock-up: Meaning and Definition of Find definitions for: mock-up Pronunciation: (mok'up"), [key] — n. a model, often full-size, for study, testing, or teaching: a mock-up of an experimental aircraft. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mock-up (Thesaurus) mock turtle soup Moctezuma Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language