/ Dictionary / Index P PHA: Meaning and Definition of Find definitions for: PHA Pronunciation: [key] Public Housing Administration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ph phacelia Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language