/ Dictionary / Index W Willem I: Meaning and Definition of Find definitions for: Wil•lem I Pronunciation: (wil'um Du. vil'um). [key] See(def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. willed willemite Related Content Daily Word Quiz: stellar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language