/ Dictionary / Index S sneak thief: Meaning and Definition of Find definitions for: sneak' thief" Pronunciation: [key] a burglar who sneaks into houses through open doors, windows, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sneak preview sneaky Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language