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pronoun theirs pronunciation in British English /ðeə(r)z/
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Theirs is used as a possessive pronoun, being a possessive form of they.
It can refer to a singular or plural noun, and it can be the subject, object, or complement of a verb or the object of a preposition: Our cat is dark grey, but theirs is black.Our children are definitely better behaved than theirs.
  1. 1
    used for referring to someone or something that belongs to or is connected with a particular group of people or animals that have already been mentioned
    Sharon’s parents claim that the house is legally theirs.
    Your garden is big, but I think theirs is bigger.
    of theirs: They introduced us to some friends of theirs.
    Synonyms and related words
  2. 2
    mainly spoken used instead ofhis or hers’, especially when you are referring back to a word such aseveryone’, ‘someone’, oranyone
    I haven’t got my exam results yet, but everyone else has had theirs.
    Synonyms and related words
    See also they


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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