/ Dictionary / Index P privy coat: Meaning and Definition of Find definitions for: priv'y coat" Pronunciation: [key] a mail shirt worn under ordinary clothing as a defense against swords or daggers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. privy chamber privy council Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language