/ Dictionary / Index P partisanism: Meaning and Definition of Find definitions for: par•ti•san•ism Pronunciation: (pär'tu-zu-niz"um, -su-), [key] — n. partisan action or spirit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. partisan partita Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language