right(An entitlement granted by contract or law); permission(Parental consent for a child to use a Windows Live service, view a website, or communicate with a person); privilege(A user's right to perform a specific task, usually one that affects an entire computer system rather than a particular object. Privileges are assigned by administrators to individual users or groups of users as part of the security settings for the computer)
permissions(Authorization to perform operations associated with a specific shared resource, such as a file, directory, or printer. Permissions must be granted by the system administrator to individual user accounts or administrative groups)