Breadcrumb Home > Dictionary > Index O open convention: Meaning and Definition of Find definitions for: o'pen conven'tion Pronunciation: [key] — U.S. Politics. U.S. Politics. a party convention at which delegates are free to vote for the candidate of their choice. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open communion open couplet 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: oungurk Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language