possessive pronoun - definition and synonyms

noun [countable] linguistics 

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singularpossessive pronoun
pluralpossessive pronouns
  1. a pronoun such as ‘mine’, ‘theirs’ or ‘yours’ that shows who something relates to or belongs to. In the sentenceHe has his problems and I have mine’, ‘mine’ refers to ‘my problems’, and in the sentence ‘They want to buy the house next door to ours’, ‘ours’ refers to ‘our house’.