/ Dictionary / Index O open primary: Meaning and Definition of Find definitions for: o'pen pri'mary Pronunciation: [key] a direct primary election in which voters need not meet a test of party membership. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open position open quote Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language