A demand or request for something considered one's due. She filed a claim for compensation after the accident.
An assertion of the truth of something, typically one that is disputed or in doubt. His claim that he could run a mile in under four minutes was met with skepticism.
A piece of land staked out by a miner or prospector, especially in the context of gold mining. He worked tirelessly on his claim, hoping to strike it rich.
A right or title to something. The company has a legal claim to the patent.
In patent law, a sentence or set of sentences that define the scope of protection sought for an invention. The patent was rejected because its key claim was judged too broad.