Senior operators Synonyms

Senior replaced

major operators

main operators

experienced operators

veteran operators

expert operators

high operators

Definitions for Senior

(adjective) being of advanced years and especially past middle age
(noun) one who is older than another
(noun) one who is above another in rank , station, or office

SO abbreviation

SO is an abbreviation for Senior Operators

What does SO stand for?

SO stands for "Senior Operators"