Ground rent is a term commonly used to describe the payment made by a tenant or occupant of land to the owner of that land. However, there are several other synonyms for this term that you might come across in legal or financial contexts. These include annual rent charge, rent charge, rent service, quit rent, and head rent. Each of these terms refers to the same basic concept of paying rent for the use and occupancy of land. Some of these terms may be more commonly used in specific regions or legal systems, so it's important to be aware of these variations if you're dealing with property ownership or rental arrangements.