theirs

Plural: theirs

Pron

That or those belonging to them; the possessive case of they, used without a following noun.
Their house or home.

Possessive Pronoun

Belonging to or associated with the people or things indicated.

Examples

Let's go over to theirs.
That bingo on the triple-word score, truly, was THEIRS for the taking in Words With Friends.
That cat of theirs got into our garden again.
Theirs cost a lot more than ours.
This luggage is theirs. These passports are also theirs.

Origin / Etymology

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.

Scrabble Score: 9

theirs: valid Scrabble (US) TWL Word
theirs: valid Scrabble Word in Merriam-Webster MW Dictionary
theirs: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 8

theirs: valid Words With Friends Word