/ Dictionary / Index P postmistress: Meaning and Definition of Find definitions for: post•mis•tress Pronunciation: (pōst'mis"tris), [key] — n. a woman in charge of a post office. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: postmistress (Thesaurus) postminimalism postmodern Related Content Daily Word Quiz: ostracize Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language