noun: (computing, Internet) A system operator, especially someone who administers an online communications system or bulletin board.
noun: (Wikimedia jargon) An administrator on a wiki.
verb: (intransitive) To work as a sysop.
verb: (transitive, rare) To give someone sysop privileges.
noun: Alternative letter-case form of sysop. [(computing, Internet) A system operator, especially someone who administers an online communications system or bulletin board.]