noun: (uncountable, informal) Administration, or administrative work.
noun: (countable, informal) An administration (a body that administers; the executive part of government).
noun: (countable, informal) An administrator (one who administers affairs).
noun: (countable, informal, computing) A systems administrator (one who maintains a computer system or network).
noun: (countable, informal, Internet) A user of a discussion forum, website, etc. with privileges allowing them to control or restrict the activity of other users.
verb: (transitive, computing, informal) To serve as an administrator for or of.