/ Dictionary / Index H handler: Meaning and Definition of Find definitions for: han•dler Pronunciation: (hand'lur), [key] — n. a person or thing that handles. a person who assists in the training of a fighter or is the fighter's second during a fight. a person who exhibits a dog in a bench show or field trial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: handler (Thesaurus) hand lens handless Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language