/ Dictionary / Index E eighty-fourth: Meaning and Definition of Find definitions for: eight•y-fourth Pronunciation: (ā'tē fôrth', -fōrth'), [key] — adj. next after the eighty-third; being the ordinal number for 84. being one of 84 equal parts. —n. an eighty-fourth part, esp. of one (). the eighty-fourth member of a series. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eighty-four eighty-nine 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