/ Dictionary / Index W Weill: Meaning and Definition of Find definitions for: Weill Pronunciation: (wīl Ger. vīl), [key] 1900–50, German composer, in the U.S. after 1935. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: weill (Thesaurus) Weihai Weil's disease Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language