Theirs vs. Their

Theirspronoun

That which belongs to them; the possessive case of they, used without a following noun.

Theirdeterminer

Belonging to, from, of, or relating to, them (plural).

‘they will meet tomorrow at their convenience;’; ‘this is probably their cat’;

Theirspronoun

used to refer to a thing or things belonging to or associated with two or more people or things previously mentioned

‘a favourite game of theirs’; ‘they think everything is theirs’;

Theirdeterminer

Belonging to someone (one person, singular).

Theiradverb

misspelling of there

Theirpronoun

The possessive case of the personal pronoun they; as, their houses; their country.

‘Nothing but the name of zeal appears'Twixt our best actions and the worst of theirs.’;