Definition - What does Appurtenance mean?
The term "appurtenance" can simply be referred to as a thing that usually goes along with some other thing. (Appurtenance is used for something that is an accessory to something.)
The term is more commonly seen and used in the context of real estate.
Justipedia explains Appurtenance
Examples of an appurtenance can include an outbuilding, property right such as easement, or fixture that usually passes at the time of selling the property.
An appurtenance can also be something that passes on with the transfer of the land, like a privilege, right or an improvement.