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| king·pin [ kíng pìn ] (plural king·pins) |
noun |
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1. leader: the most important person in a group or place
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informal
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2. part of axle: a pivot pin that secures an axle to an axle beam and allows a vehicle to be steered
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3. front pin in bowling: the pin at the apex of a layout of the pins in bowling, which must be struck at a specific angle if all the pins are to be knocked down
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