IPA: //ˈpoʊstˌmɪstrəs//
KK: /ˈpoʊstˌmɪstrəs/
A woman who manages and oversees the activities of a local post office.
The postmistress greeted each customer with a smile as they entered the post office.
Postmistress → It is formed from "post" (from Latin *postis*, meaning door or post) and "mistress" (from Old French *maistresse*, meaning female master or head). The word refers to a woman who is in charge of a post office or postal service.
Think of a 'post' as a place where mail is handled and 'mistress' as a female leader — a postmistress is a woman who leads the postal service.