Root

/rüt/

[UNIX]

n. 1. The superuser account that ignores permission bits, user number 0 on a UNIX system. This account has the user name 'root'. The term avatar is also used.

2. The top node of the system directory structure (home directory of the root user).

3. By extension, the privileged system-maintenance login on any OS.

See root mode, go root.