/ Dictionary / Index P public interest: Meaning and Definition of Find definitions for: pub'lic in'terest Pronunciation: [key] the welfare or well-being of the general public; commonwealth: health programs that directly affect the public interest. appeal or relevance to the general populace: a news story of public interest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. public housing public-interest law Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language