Legal Definition
A royalty is a legal right granted to the owner of an intellectual property (such as a patent or copyright) to exclusively license the right to use, reproduce, or exploit a specific invention or creative work for a defined period.
Plain-English Translation
Imagine you own something special, like a song or a design. A royalty is the permission that lets other people use your creation, and in return, they pay you a fee for using it. It's the legal right to say, 'Here is how you can use my invention or creative work.'