operator noun
1 person who connects telephone calls
ADJ. switchboard, telephone
OPERATOR + VERB connect sb, put sb through I asked the operator to put me through to her office.
2 person who works a machine, etc.
ADJ. experienced, skilled | unskilled | machine, plant | computer, lathe, radio, word processor, etc.
3 person/company that does particular business
ADJ. big, small | private | holiday, tour, travel | cable (television), satellite, telecommunications, etc. | airline, bus, coach, ferry
4 sb who is skilful at getting what they want
ADJ. shrewd, slick, smooth
You can also check other dicts: operator (English, 中文解释 ), wordnet sense, Collins Definition