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 or relating to them; the plural counterpart of 'his', 'her', and 'its'.

    Our neighbors are painting their fence.

    The players thanked their fans.

    UsageSounds like there and they're: their car, over there, they're late.

    Note

    The antecedent need not look plural: in 'For Liverpool, their season…' a club is treated as the people in it. When the antecedent is a single person, the same word does the singular job.

    Checked 2 Nov 2026 · 1 fact

  2. 2
    of one persondeterminer
    Belonging to one person whose gender is unknown or unstated ('place the casualty on their back') or who uses 'they' as their pronoun, such as a nonbinary person; occasionally to a thing.

    If anyone calls, take their number.

    The winner will have their name read out.

    UsageCommon after anyone, someone or each person: someone left their bag.

    Note

    Singular use is old. In Shakespeare, Antipholus of Syracuse says 'as if I were their well-acquainted friend' of any man he meets, and a 2006 first-aid guide tells you to place the casualty on their back.

    Checked 2 Nov 2026 · 3 facts

Use it in a sentence

Write your own sentence with their, and AI will tell you whether it fits and which meaning you used.

Origin

This word comes from the Old Norse "þeirra," which replaced the native Old English "heora."

Checked 1 Nov 2026 · 2 facts