What term describes the right to use another's property for a specific purpose?

An easement is the correct term that describes the right to use another person's property for a specific purpose. This legal concept allows one party to have a limited right to access or use another's land for a defined reason, such as providing access to utilities or allowing passage across a property. Easements can be either appurtenant, benefiting a specific piece of property, or in gross, benefiting an individual or entity without regard to land ownership.

In contrast, title refers to the legal right to own and possess property, which does not specifically imply permission to use someone else's property. Encroachment typically involves unauthorized intrusion onto another person's land, such as a fence or building extending beyond property lines, and does not grant any rights to the landowner of the encroachment. Restrictions are conditions placed on the use of property by the owner, which can limit what can be done with that property but do not confer rights for use to others. Therefore, easement best captures the notion of a legal right to use another's property for a specific purpose.