Definition of operator noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈɒpəreɪtə(r)//
    ; NAmE NAmE//ˈɑːpəreɪtər//
    The tourist industry, Phone services, Business people, Mathematical terminology, Job titles
    jump to other results
  1. 1(often in compounds) a person who operates equipment or a machine a computer/machine operator See related entries: Business people, Job titles
  2. 2 (British English also telephonist) a person who works on the telephone switchboard of a large company or organization, especially at a telephone exchange Dial 100 and ask for the operator. See related entries: Phone services
  3. 3(often in compounds) a person or company that runs a particular business a tour operator a bus operator a train operator that runs services between London and Scotland See related entries: The tourist industry
  4. 4(informal, especially disapproving) a person who is skilful at getting what they want, especially when this involves behaving in a dishonest way a smooth/slick/shrewd operator
  5. 5(mathematics) a symbol or function which represents an operation in mathematics See related entries: Mathematical terminology
See the Oxford Advanced American Dictionary entry: operator