/ Dictionary / Index P p's and q's: Meaning and Definition of Find definitions for: p's and q's Pronunciation: [key] manners; behavior; conduct (usually prec. by mind or watch): The children were told to mind their p's and q's. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Psamtik I PSAT Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language