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linch·pinor lynch·pin (lĭnch′pĭn′)
1. A locking pin inserted in the end of a shaft, as in an axle, to prevent a wheel from slipping off.
2. A central cohesive element: Reduced spending is the linchpin of their economic program.
[Middle English linspin : lins, linchpin (from Old English lynis) + pin, pin (from Old English pinn; see pin).]
1. (Mechanical Engineering) a pin placed transversely through an axle to keep a wheel in position
2. a person or thing regarded as an essential or coordinating element: the linchpin of the company.
[C14 lynspin, from Old English lynis]
1. a pin inserted through the end of an axletree to keep the wheel on.
2. something that holds the various elements of a complicated structure together.
[1350–1400; alter. of Middle English lynspin <lyns, Old English lynis linchpin (c. Old Saxon lunisa, Middle High German luns(e))]
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|Noun||1.||linchpin - a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"|
support - something providing immaterial assistance to a person or cause or interest; "the policy found little public support"; "his faith was all the support he needed"; "the team enjoyed the support of their fans"
|2.||linchpin - pin inserted through an axletree to hold a wheel on|
pin - a small slender (often pointed) piece of wood or metal used to support or fasten or attach things