/ Dictionary / Index S sneak preview: Meaning and Definition of Find definitions for: sneak' pre'view Pronunciation: [key] a preview of a motion picture, often shown in addition to an announced film, in order to observe the reaction of the audience. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sneaking sneak thief Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language