/ Dictionary / Index E econiche: Meaning and Definition of Find definitions for: ec•o•niche Pronunciation: (ek'ō-nich", ē'kō-), [key] — n. niche (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. econ. econometrics Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language