operator

noun

1. A person or organisation that operates a device, system, service, etc.
2. A telecommunications facilitator whose job is to connect or otherwise assist callers.
3. A member of a military special operations unit.
4. A surgeon; one who performs medical operations.
5. The game of Chinese whispers.
6. A person who is adept at making deals or getting results, especially one who uses questionable methods.
7. A function or other mapping that carries values defined on a domain into another value or set of values in a defined range.
8. The administrator of a channel or network on IRC.
9. A symbol that represents a construct in a programming language and differs from a normal function in its syntax.
10. A kind of expression that enters into an a-bar movement dependency and is said to bind a variable.
11. A bus driver.
12. The company that operates a mine; often the same one that owns the mine.
13. A thief or charlatan.
14. A major criminal.
15. Someone who is successful at pursuing women; a player.