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or 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).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈlɪntʃˌpɪn) or


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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



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))]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.linchpin - a central cohesive source of support and stabilitylinchpin - 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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[ˈlɪntʃpɪn] N (lit) → pezonera f (fig) → eje m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[ˈlɪntʃpɪn] n (= key person, element) → pivot m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


nAchs(en)nagel m, → Lünse f; (fig)Stütze f; accurate timing is the linchpin of the entire operationdas ganze Unternehmen steht und fällt mit genauer Zeiteinteilung
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ˈlɪntʃˌpɪn] n (in axle) → acciarino, bietta (fig) → perno
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
"English cricket owes a great debt of gratitude to Alastair Cook and to James Anderson, one with the bat and the other with the ball, who have been lynchpins of the Test side for well over a decade and are two of our all-time greats.
In a speech in Bruges tomorrow, the First Minister will say: "Scotland's vast natural resources and human talent make it one of the lynchpins of the European Union."
Abu Dhabi The senior vice-president of ExxonMobil Corporation, one of the world's largest publicly traded oil and gas companies, said yesterday that the UAE and other nations in the Middle East are "lynchpins in the production of energy and the search for environmental solutions".