/ Dictionary / Index H higher-up: Meaning and Definition of Find definitions for: high•er-up Pronunciation: (hī'ur-up'), [key] — n. Informal. a person in a position of higher authority in an organization; superior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: higher-up (Thesaurus) higher mathematics highest common factor Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language