Meaning of OPERATOR in English
[noun] [C]An operator is a person who makes something work or be in action.a computer/lathe/machine operatora nightclub operatora tour operator (= a company which organizes holidays)An operator is also a person who works on a telephone switchboard: Dial 100 for the operator if you have any difficulties making a call.(esp. disapproving) An operator is also a person who deals people or problems in the particular stated way, esp. for their own advantage: a smooth operatorpeople or problems in the particular stated way, esp. for their ownadvantage: a smooth operatorHe has shown himself to be a canny operator in wage negotiations.
Cambridge English vocab. Кембриджский английский словарь. 2012