Which term describes the right to use someone else's land for a specific purpose?

The term that accurately describes the right to use someone else's land for a specific purpose is "Easement." An easement grants a non-possessory interest to a person or entity, allowing them to utilize a portion of another's property. This right may be established for various reasons, such as allowing utility companies to install lines or access roads for nearby properties.

An easement is typically recorded in the public records, making it a formalized and often permanent arrangement between the parties involved. It is distinct from a lease or license, as an easement does not confer possession of land; instead, it serves a specific purpose related to the use of the property without transferring ownership or control.

In contrast, a lease involves the rental of property for a specific period in exchange for payment and does indeed grant possession to the lessee. A license, while also permitting some level of use of another's land, is generally a more temporary and revocable permission. Encroachment refers to an unauthorized intrusion onto another's property, which does not involve any agreed-upon right to use the land.