Breadcrumb Home > Dictionary > Index I ides: Meaning and Definition of Find definitions for: ides Pronunciation: (īdz), [key] — n. (used with a sing. or pl. v.) (in the ancient Roman calendar) the fifteenth day of March, May, July, or October, and the thirteenth day of the other months. -ides Pronunciation: [key] a Greek plural suffix appearing in scientific names: cantharides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ides (Thesaurus) ideomotor id est* 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: jactation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language