It can be used in various contexts:
* A statement that something is true: "He made a claim that he had been there."
* A demand for something that is rightfully yours: "She filed a claim for her lost luggage."
* Something that you believe is true or that you have a right to: "The book is based on his claim to be a historian."
Let me know if you'd like to explore any specific context of "claim" in more detail!