/ Dictionary / Index P praepostor: Meaning and Definition of Find definitions for: prae•pos•tor Pronunciation: (prē-pos'tur), [key] — n. a senior student at an English public school who is given authority over other students. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. praenomen Praesepe Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language