/ Dictionary / Index P public-address system: Meaning and Definition of Find definitions for: pub'lic-ad•dress' sys"tem Pronunciation: (pub'lik-u-dres'), [key] a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. public act public administration Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language