Pronouns: possessive (my, mine, your, yours, etc.)
We use pronouns to refer to possession and ‘belonging’. There are two types: possessive pronouns and possessive determiners. We use possessive determiners before a noun. We use possessive pronouns in place of a noun: …
There, their or they’re?
There, their and they’re are commonly confused in English, as they sound the same. …
their | American Dictionary
their
pronoun[ pl ]
us/ðeər/
belonging to or connected with them; the possessive form of they, used before a noun:
It was their money, and they could spend it as they liked.
infml Their is also used to refer to a person whose sex is not known:
Someone forgot to take their umbrella.