Breadcrumb Home > Dictionary > Index A arse: Meaning and Definition of Find definitions for: arse Pronunciation: (ärs), [key] — n. Slang (vulgar) ass (defs. 1, 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arse (Thesaurus) Ars Antiqua arsen- ✖ Related Content Daily Word Quiz: musth Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language