Theirs or *Their’s | Meaning, Spelling & Use

Theirs is a third-person plural possessive pronoun.

“Their’s,” written with an apostrophe, is sometimes used instead of theirs. However, this is incorrect and should be avoided. While possession is usually indicated by adding ‘s to the end of a word, possessive pronouns don’t take an apostrophe.

Examples: Theirs and their’s in a sentence
  • I enjoyed my dessert, but Tina and Jay didn’t enjoy their’s.
  • I enjoyed my dessert, but Tina and Jay didn’t enjoy theirs.
  • That’s not our car, it’s their’s.
  • That’s not our car, it’s theirs.

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How to use theirs in a sentence

As a possessive pronoun, theirs is used in place of a noun to indicate ownership of something by someone else. It’s closely related to the possessive determiner “their.” However, while “their” is always used before a noun to indicate possession, theirs is never used to modify a noun.

    Examples: How to use theirs in a sentence
    This house is mine, and that house is theirs.

    Hannah and Tim can’t find their luggage.

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    Eoghan Ryan

    Eoghan has a lot of experience with theses and dissertations at bachelor's, MA, and PhD level. He has taught university English courses, helping students to improve their research and writing.