/ Dictionary / Index P PSAT: Meaning and Definition of Find definitions for: PSAT Pronunciation: [key] Preliminary Scholastic Aptitude Test. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. p's and q's PSC 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