/ Dictionary / Index P prepositor: Meaning and Definition of Find definitions for: pre•pos•i•tor Pronunciation: (prē-poz'i-tur), [key] — n. praepostor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prepositive prepossess Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language