Licence: personal permission to do otherwise unlawful acts on a grantor's immovable property, not creating a property interest. Licence is a personal right by which one person grants another, or a definite number of persons, permission to do or continue to do on the grantor's immovable property something that would otherwise be unlawful; such a right does not amount to an easement or an interest in the property and remains non-proprietary, defined by the scope of the permission and the parties' terms.