/ Dictionary / Index Y you'll: Meaning and Definition of Find definitions for: you'll Pronunciation: (yl unstressed y&oobrevel, y&schwal), [key] contraction of you will: You'll never guess who was here. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Youghiogheny Youlou Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language