DictionaryAI

their

determiner
SayTHAIR/ðɛɚ//ðɛə/

Often confused with there and they're

2 meanings of their

Practice

  1. 1
    of a groupdeterminer
    Belonging to them, the people or things already mentioned.

    The children put on their coats.

    The trees have lost their leaves.

    UsageDon't mix up their car, over there and they're (they are).

    Note
  2. 2
    of one persondeterminer
    Belonging to one person, when you don't say if they are male or female, or when they like being called 'they'.

    Someone left their umbrella on the bus.

    Each student must bring their own lunch.

    UsageOften used after words like anyone, everyone, or someone: someone left their bag.

    Note

Use it in a sentence

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Origin

It comes from the Old Norse word "þeirra." It took the place of the older English word "heora."

Checked 1 Nov 2026 · 2 facts