theirs
1 ENTRIES FOUND:
Britannica Dictionary definition of THEIRS
1
:
that which belongs to or is connected with them
:
their one
:
their ones
-
The computer is theirs. [=the computer belongs to them; it is their computer]
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He bought his car on the same day his parents bought theirs.
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She is a friend of theirs. [=she is their friend]
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That dog of theirs [=their dog] is always barking.
2
:
his or hers
— used to refer to a single person whose sex is not known or specified
-
I will do my part if everybody else does theirs.
