operator

IPA: ˈɑpɝeɪtɝ

One who operates.
A telecommunications facilitator whose job is to establish temporary network connections.
A member of a military special operations unit.
(uncountable) The game of Chinese whispers.
(informal) A person who is adept at making deals or getting results, especially one who uses questionable methods.
(mathematics) A function or other mapping that carries variables defined on a domain into another variable or set of variables in a defined range.
(computing) The administrator of a channel or network on IRC.
(computing) A symbol that represents a construct in a programming language and differs from a normal function in its syntax.
(linguistics) A kind of expression that enters into an a-bar movement dependency and is said to bind a variable.
(transport) A bus driver.
(slang) A thief or charlatan.
(slang) A major criminal.
(slang, dated) Someone who is successful at pursuing women; a player.

Examples of "operator" in Sentences

In this book I'll use the term operator throughout.
Imagine a texting metro train operator now responsible for sedating you before surgery ...
Under federal law, BP, as the lead project operator, is responsible for all clean-up costs associated with the spill.
Eurostar's move comes as Deutsche Bahn, the German train operator, draws up plans to run direct services from London to Frankfurt and Cologne.
The drone operator is safer than the fighter pilot, but safety has rarely been the key variable in determining whether a particular task is “military” or not.
However, train operator London Midland probably speaks for many rail companies when it says: "The vast majority of our passengers support us taking a firm but fair approach to fare evaders, so that the honest majority are not subsidising those who choose to avoid their fare."