Breadcrumb Home > Dictionary > Index U unco: Meaning and Definition of Find definitions for: un•co Pronunciation: (ung'kō), [key] — adj., adv., n., pl. -cos. —adj. remarkable; extraordinary. unusual; strange. uncanny. —adv. remarkably; extremely. —n. something extraordinary or unusual; a novelty. news. a stranger. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unco (Thesaurus) unclubbable uncoded TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language