DRILL
Definition of DRILL
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A tool used to remove material so as to create a hole, typically by plunging a rotating cutting bit into a stationary workpiece.
"Wear safety glasses when operating an electric drill."
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The portion of a drilling tool that drives the bit.
"Use a drill with a wire brush to remove any rust or buildup."
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An activity done as an exercise or practice (especially a military exercise), particularly in preparation for some possible future event or occurrence.
"Regular fire drills can ensure that everyone knows how to exit safely in an emergency."
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To create (a hole) by removing material with a drill (tool).
"Drill a small hole to start the screw in the right direction."
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To practice, especially in (or as in) a military context.
"They drilled daily to learn the routine exactly."
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To cause to drill (practice); to train in military arts.
"The sergeant was up by 6:00 every morning, drilling his troops."
Source: Wiktionary