English Reference
noun

mistress

n.
US /ˈmɪstɹəs/ UK /mˈɪstɹəs/ mis·tress UK spelling mistresses

  1. 01 B2 Upper Intermediate

    a woman who has a long-term sexual relationship with a man who is married to someone else.

    a woman who is involved in a long-term sexual relationship with a married man. The term implies a degree of financial or emotional support from the man.

    Simple

    The king's mistress lived in a private house near the palace.

    In context

    Historical accounts suggest that the king's mistress exerted significant political influence over the court despite having no official title.

    loverthe other woman
  2. 02 C1 Advanced FormalLiterary

    a woman who is in charge of a place, a household, or a group of people.

    a woman who has power, authority, or ownership, particularly as the head of a household or institution.

    Simple

    She was the mistress of a large estate with many servants.

    In context

    As the mistress of the house, she was responsible for managing the domestic staff and overseeing the annual budget.

  3. 03 C1 Advanced FormalLiterary

    a woman who is very skilled or talented at a particular activity.

    a woman who has achieved a high degree of proficiency or mastery in a specific craft, art, or field of study.

    Simple

    She was a mistress of the violin and played in the national orchestra.

    In context

    The author proved herself a mistress of suspense, keeping readers guessing until the final chapter of the novel.

  4. 04 C2 Proficiency Archaic

    a title used in the past for a woman, which later became the short form 'Mrs'.

    an archaic title of address for a woman of social standing, now surviving primarily in the abbreviated form 'Mrs'.

    Simple

    In the old story, the character is addressed as Mistress Page.

    In context

    The document, dated 1640, refers to the landowner as Mistress Elizabeth Thornton.

He went to great lengths to conceal her because, even though many men had mistresses, it wasn’t something that gentlemen broadcast in polite society.

Aeon· 3 Sept 2026
This entry
Level C1 · Advanced
Frequency Frequent
Updated