/ Dictionary / Index I ither: Meaning and Definition of Find definitions for: ith•er Pronunciation: (i'ur), [key] — adj., pron., adv. Brit. Dial. other. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ithaca Ithome Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language