Breadcrumb Home > Dictionary > Index Q QED: Meaning and Definition of Find definitions for: QED Pronunciation: [key] — Physics. Physics. See Q.E.D. Pronunciation: [key] which was to be shown or demonstrated (used esp. in mathematical proofs). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: qed (Thesaurus) q.e. Q.E.F. TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language