All realty is immobile tangible. A tangible thing can either be a realty or be a personalty.
Personalty is the property owned by individual persons.
Property is the right to use, possess, enjoy and dispose of a thing. Intellectual property is intangible property. Property right is the right of the owner to use, possess, enjoy and dispose of this property according to the civil law. A lien is a claim laid on property to secure the payment of a debt. A gift is different from a purchase, because when one makes a gift he generally does not get something in return.