n. 1 lover, girlfriend, live-in lover, kept woman, concubine, inamorata, paramour, Literary odalisque, Archaic doxy, Colloq US alternative other, POSSLQ (= 'Person of the Opposite Sex Sharing Living Quarters') She was the mistress of a leading politician 2 schoolmistress, instructress, governess; headmistress She had a rewarding career as a mistress in a girls' school in Lancashire
MISTRESS
Meaning of MISTRESS in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012