Definition of operator in English:

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Pronunciation: /ˈɒpəreɪtə/


1 [often with modifier] A person who operates equipment or a machine: a radio operator
More example sentences
  • There are cooks, office staff, engineers, equipment operators, mechanics, welders, bosses, planners and many more jobs available at a mine.
  • In such cases, the disease can be very dangerous for machine operators and drivers.
  • So Griffin works as a machine operator at civil engineering company Westmode in Swindon.
1.1A person who works at the switchboard of a telephone exchange: calls are made through the operator
More example sentences
  • Lonesome tells the story of a punch-press operator named Jim and a telephone switchboard operator named Mary who are desperately lonely, and then meet by chance during a holiday at Coney Island.
  • There used to be a lot of more telephone switchboard operators around also, but technology made that job obsolete.
  • The protective services department and the telephone switchboard operators also were notified.
2 [usually with modifier] A person or company that runs a business: a tour operator
More example sentences
  • He says there is a social aspect to the credit union movement, which consumers tired of greedy financial service industry operators find refreshing.
  • The premier approved a controversial plan by transport secretary Stephen Byers to take Railtrack, the privatised national rail operator, into administration.
  • The establishment of SBCGT has been therefore a response to the demand for credit and finance facilities by small business operators.
contractor, entrepreneur, promoter, impresario, arranger, fixer, trader, dealer, director, manager, partner, businessman, businesswoman, financier, venture capitalist, speculator
3 [with adjective] informal A person who acts in a shrewd or manipulative way: her reputation as a cool, clever operator
More example sentences
  • One of Rove's heroes was Mark Hanna, a shrewd political operator from Ohio who helped put William McKinley in the White House in 1896.
  • Seemingly on his way out when he was shifted from the Foreign Office at the last reshuffle, this shrewd operator may have identified a swift route back to the heart of the government.
  • A business graduate, he began to earn a name for himself as a shrewd and energetic operator at NCB stockbrokers.
4 Mathematics A symbol or function denoting an operation (e.g. ×, +).
Example sentences
  • His recent breakthroughs in the theory of characteristic functions for several commuting operators indicate that in spite of his seventy years, mathematically Moshe is still a young man.
  • Smoothing operators and functions have been used for interpolation and, more generally, data fitting.
  • Why does he require the associative law to hold if his symbols are operators?
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