/ Dictionary / Index P posh: Meaning and Definition of Find definitions for: posh Pronunciation: (posh), [key] — adj. sumptuously furnished or appointed; luxurious: a posh apartment. posh Pronunciation: (posh), [key] — interj. (used as an exclamation of contempt or disgust.) Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: posh (Thesaurus) poseur posigrade rocket Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language