/ Dictionary / Index W willowwacks: Meaning and Definition of Find definitions for: wil•low•wacks Pronunciation: (wil'ō-waks"), [key] — n. New Eng. a wooded, uninhabited area. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Willow Run willow warbler 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