/ Dictionary / Index C CAA: Meaning and Definition of Find definitions for: CAA Pronunciation: [key] Civil Aeronautics Administration: reorganized into the Federal Aviation Administration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ca' cab Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language