op

/op/ , n. 1. In England and Ireland, common verbal abbreviation for operator
, as in system operator. Less common in the U.S., where sysop seems to be
preferred. 2. [IRC] Someone who is endowed with privileges on IRC , not
limited to a particular channel. These are generally people who are in
charge of the IRC server at their particular site. Sometimes used
interchangeably with CHOP. Compare sysop.