What Does Privilege Mean?
Privilege, in the context of computer security, is the concept of only allowing users to do certain things. For example, an ordinary user is typically prevented from changing operating system files, while a system administrator is typically permitted to do so, because this is part of maintaining a computer system. Maintaining user privilege is typically accomplished through the use of administrative accounts, file permissions and Access Control Lists (ACLs).
Techopedia Explains Privilege
Privilege, in computer security, means delegating authority for making changes to a computer system. On many systems, there’s a separation between “normal” users without any authority to make changes to the system and “administrative” users with full access to the system.