mistress

Từ điển Oxford Advanced Learner 8th

mis·tress [mistress mistresses] BrE [ˈmɪstrəs] NAmE [ˈmɪstrəs] noun
1. a man's (usually a married man's) mistress is a woman that he is having a regular sexual relationship with and who is not his wife
2. (BrE, old-fashioned)a female teacher in a school, especially a private school
•the Biology mistress
3. (in the past) the female head of a house, especially one who employed servants
•the mistress of the house
•Lizzie, fetch your mistress her shawl.
4. the female owner of a dog or other animal
5. (formal)a woman who is in a position of authority or control, or who is highly skilled in sth
•She wants to be mistress of her own affairs (= to organize her own life).
•She is the mistress of plain speech.
compare ↑master

Word Origin:
Middle English: from Old French maistresse, from maistre ‘master’.

Example Bank:
•The fact that he had a mistress didn't mean he didn't love his wife.
•When do I cease to be your mistress and become your wife?

• Từ đồng nghĩa / Synonyms:
  schoolmarm, schoolma'am, schoolmistress, kept woman, fancy woman