/ Dictionary / Index E eighty-nine: Meaning and Definition of Find definitions for: eight•y-nine Pronunciation: (ā'tē nīn'), [key] — n. a cardinal number, 80 plus 9. a symbol for this number, as 89 or LXXXIX. a set of this many persons or things. —adj. amounting to 89 in number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eighty-nine (Thesaurus) eighty-fourth eighty-niner 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