* Possession: "The students left their books on the table."
* Reference to a group: "The team celebrated their victory."
* Indefinite reference: "Someone left their phone in the bathroom."
Important Note: "Their" is used to refer to plural nouns and/or groups. It is not used for singular nouns. If you are referring to something belonging to one person, you would use "his" or "her".
Let me know if you have any other questions! 😊