Breadcrumb Home > Dictionary > Index H hey: Meaning and Definition of Find definitions for: hey Pronunciation: (hā), [key] — interj. (used as an exclamation to call attention or to express pleasure, surprise, bewilderment, etc.) hello: used as a greeting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexylresorcinol heyday ✖ Related Content Daily Word Quiz: guilloche Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language