/ Dictionary / Index U ump: Meaning and Definition of Find definitions for: ump Pronunciation: (ump), [key] — n., v.t., v.i., Slang. umpire. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ump (Thesaurus) ummah umph Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language