Operator (That's Not the Way It Feels)
WordNet

noun


(1)   A shrewd or unscrupulous person who knows how to circumvent difficulties
(2)   An agent that operates some apparatus or machine
"The operator of the switchboard"
(3)   Someone who owns or operates a business
"Who is the operator of this franchise?"
(4)   A speculator who trades aggressively on stock or commodity markets
(5)   (mathematics) a symbol that represents a function from functions to functions
"The integral operator"
 
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