/ Dictionary / Index F free balloon: Meaning and Definition of Find definitions for: free' balloon' Pronunciation: [key] a balloon, often equipped to carry passengers, that drifts with air currents and whose ascent and descent are controlled by the release of ballast and buoyant gas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. free atmosphere freebase Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language