/ Dictionary / Index F forty-three: Meaning and Definition of Find definitions for: for•ty-three Pronunciation: (fôr'tē thrē'), [key] — n. a cardinal number, 40 plus 3. a symbol for this number, as 43 or XLIII. a set of this many persons or things. —adj. amounting to 43 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: forty-three (Thesaurus) forty-third forty-two Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language