linchpin
noun
Did you know?
In his 1857 novel, Tom Brown’s School Days, Thomas Hughes describes the “cowardly” custom of “taking the linch-pins out of the farmers’ and bagmens’ gigs at the fairs.” The linchpin in question held the wheel on the carriage, and removing it made it likely that the wheel would come off as the vehicle moved. Such a pin was called a lynis in Old English; Middle English speakers added pin to form lynspin. By the early 20th century, English speakers were using linchpin for anything as critical to a complex situation as a linchpin is to a wagon, as when Winston Churchill, in 1930, wrote of Canada and the role it played in the relationship between Great Britain and the United States, that “no state, no country, no band of men can more truly be described as the linchpin of peace and world progress.”
Examples of linchpin in a Sentence
Business Columnist, Los Angeles Times, 6 May 2026
The Stars’ biggest strength is their depth, and removing the linchpin from the top of the lineup affected every line.
—Mark Lazerus, New York Times, 1 May 2026
The locations are a linchpin in the company’s crusade to offer as many products as possible, all while cutting down delivery times and costs.
—Glenn Taylor, Footwear News, 30 Apr. 2026
Osmon’s cast of characters sometimes sprawls to confounding breadth, but her linchpin figures are Springsteen, Mellencamp, Seger, and Petty.
—Jack Hamilton, The Atlantic, 28 Apr. 2026
See All Example Sentences for linchpin
Cite this Entry
“Linchpin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/linchpin. Accessed 8 May. 2026.
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linchpin
noun
