/ Dictionary / Index O open air: Meaning and Definition of Find definitions for: o'pen air' Pronunciation: [key] the outdoors. o•pen-air Pronunciation: (ō'pun-âr'), [key] — adj. existing in, taking place in, or characteristic of the open air; outdoor: The orchestra gave three open-air concerts last summer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open admissions open-and-shut Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language