/ Dictionary / Index O open secret: Meaning and Definition of Find definitions for: o'pen se'cret Pronunciation: [key] something supposedly secret but actually known quite generally. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open season open sentence Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language