Breadcrumb Home > Dictionary > Index E erstwhile: Meaning and Definition of Find definitions for: erst•while Pronunciation: (ûrst'hwīl", -wīl"), [key] — adj. former; of times past: erstwhile friends. —adv. formerly; erst. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: erstwhile (Thesaurus) erst ERT TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: soupon Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language