1. [ noun ] (mathematics) a symbol that represents a function from functions to functions

"the integral operator"

Related terms: function linear_operator identity mathematics
2. [ noun ] an agent that operates some apparatus or machine
Synonyms: manipulator

"the operator of the switchboard"

Related terms: causal_agent driver telegrapher telephone_operator company_operator hoister engineer motorman switchman jockey elevator_operator radio_operator operate
3. [ noun ] (informal) a shrewd or unscrupulous person who knows how to circumvent difficulties
Synonyms: wheeler_dealer hustler
Related terms: opportunist wire-puller colloquialism
4. [ noun ] (work,business) someone who owns or operates a business

"who is the operator of this franchise?"

Related terms: businessman supermarketer operate
5. [ noun ] a speculator who trades aggressively on stock or commodity markets
Related terms: speculator
Similar spelling:   oporto