English Reference
pronoun

theirs

pron.
US /ˈðɛɹz/ UK /ðˈeəz/ theirs

  1. 01 A2 Elementary

    the thing or things that belong to 'them'.

    the possessive pronoun corresponding to the third-person plural 'they', functioning as a full noun phrase.

    Simple

    We have our tickets, and they have theirs.

    In context

    While our department met its quarterly targets, the marketing team struggled to reach theirs due to unforeseen budget cuts.

    Usage

    This pronoun stands alone and never comes before a noun; use 'their' if a noun follows.

    Pitfall
    The blue car is their's. The blue car is theirs.

    Possessive pronouns like 'theirs', 'ours', and 'yours' never take an apostrophe.

  2. 02 B1 Intermediate Informal

    the house or home where a group of people live.

    an elliptical construction referring to the residence or home of the third-person plural subjects.

    Simple

    We're going over to theirs for dinner on Saturday night.

    In context

    After the concert ended, the whole group headed back to theirs to continue the celebration in a more private setting.

    Usage

    Commonly used with prepositions like 'at' or 'to' in British and Australian English.

    their placetheir house

From Middle English theires, attested since the 1300s. Equivalent to their + -s (compare -'s); formed by analogy to his. Displaced theirn (from Middle English theiren, formed by analogy to mine, thine) in standard speech.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English theires
Level B1 · Intermediate
Frequency Frequent
Updated