/ Dictionary / Index A air conditioner: Meaning and Definition of Find definitions for: air' condi"tioner Pronunciation: [key] an air-conditioning device. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. air-condition air conditioning Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language