/ Dictionary / Index B bettor: Meaning and Definition of Find definitions for: bet•tor Pronunciation: (bet'ur), [key] — n. a person who bets. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bettor (Thesaurus) bettong betty Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language