/ Dictionary / Index P partis: Meaning and Definition of Find definitions for: par•tis Pronunciation: (pär'tis), [key] — adj. (in prescriptions) of a part. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parti pris* partisan 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