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Definition of mistress noun from the Oxford Advanced Learner's Dictionary

mistress

noun
 
/ˈmɪstrəs/
 
/ˈmɪstrəs/
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  1. a person's (usually a married man’s) mistress is a woman that they have a regular sexual relationship with and who is not their wife
    • It was considered quite normal for a man to have a mistress.
    • When do I cease to be your mistress and become your wife?
    Topics Family and relationshipsc2
    Oxford Collocations Dictionaryadjective
    • former
    • young
    … of mistresses
    • string
    verb + mistress
    • have
    • take
    • keep
    See full entry
  2. (British English, old-fashioned) a female teacher in a school, especially a private school
    • the Biology mistress
    Topics Educationc2
  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. (old-fashioned) the female owner of a dog or other animal
  5. (old-fashioned) a woman who is in a position of authority or control, or who has a lot of skill in something
    • She wants to be mistress of her own affairs (= to organize her own life).
    • She is the mistress of plain speech.
    see also wardrobe mistress (1)
  6. compare master
    Word OriginMiddle English: from Old French maistresse, from maistre ‘master’.
See mistress in the Oxford Advanced American Dictionary
halfway
adverb
 
 
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