Definition of "driller" [drill•er]

• One who drills. (noun)
• A person in charge of a drilling rig. (noun)

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• "The driller is a friend of mine, and he has told me that his casing is set."
• "Known in the industry as "skidable rigs," six of Williams rigs now in operation are made by the Helmerich & Payne manufacturing company, and are operated by a crew of five, including the "driller" who sits in a chair surrounded by computer consoles with touch-screens, and a kind of joy-stick to manipulate the drill itself."
• "That was a water well driller I cut up with a plasma cutter."