/ Dictionary / Index F forty-eighth: Meaning and Definition of Find definitions for: for•ty-eighth Pronunciation: (fôr'tē ātth', -āth'), [key] — adj. next after the forty-seventh; being the ordinal number for 48. being one of 48 equal parts. —n. a forty-eighth part, esp. of one (). the forty-eighth member of a series. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: forty-eighth (Thesaurus) forty-eight forty-eightmo Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language