Added 9 October 2026 spymistress noun noun ! Definition from Wiktionary (CC BY-SA). More about spymistress at Wordnik → Where our words come from → The female leader of a group of spies. Origin From spy + mistress. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: spyessscoutmistressshipmistressmistressespysophistressspaewomanswordsmistressinspectrixthiefesssecretaryesssaviouress Back to today's word