/ Dictionary / Index E eighty-niner: Meaning and Definition of Find definitions for: eight•y-nin•er Pronunciation: (ā'tē nī'nur), [key] — n. a person who began homesteading in Oklahoma in 1889. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eighty-niner (Thesaurus) eighty-nine eighty-ninth 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