as in cornerstone
an immaterial thing upon which something else rests
a sense of history is the keystone to the city's draw as a tourist destination
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Recent Examples of keystone
The New Yorker’s founding editor, Harold Ross, regarded The Talk of the Town as the keystone of each issue, and sent as much of it as possible through White’s typewriter.
—
Nathan Heller, New Yorker, 24 Aug. 2025
At the time it was considered the keystone in Oceanside’s downtown renaissance, part of an effort to bring more people and commercial activity to the area.
—Phil Diehl, San Diego Union-Tribune, 7 Aug. 2025
The viewing rectangle can be scaled down and moved around to fit the available space, without needing to reposition the unit, and focus/keystone are automatically tweaked for easy placement.
—New Atlas, 4 Aug. 2025
Permitting reform and more investments in energy supply, keystones of the final plan, were also the central asks of Google and Microsoft.
—Matteo Wong, The Atlantic, 23 July 2025
See All Example Sentences for keystone
Nathan Heller, New Yorker, 24 Aug. 2025
At the time it was considered the keystone in Oceanside’s downtown renaissance, part of an effort to bring more people and commercial activity to the area.
—Phil Diehl, San Diego Union-Tribune, 7 Aug. 2025
The viewing rectangle can be scaled down and moved around to fit the available space, without needing to reposition the unit, and focus/keystone are automatically tweaked for easy placement.
—New Atlas, 4 Aug. 2025
Permitting reform and more investments in energy supply, keystones of the final plan, were also the central asks of Google and Microsoft.
—Matteo Wong, The Atlantic, 23 July 2025
See All Example Sentences for keystone
Recent Examples of Synonyms for keystone
Noun
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Tech companies including Amazon, Google, and Microsoft, meanwhile, have committed to buying millions of dollars in carbon removal credits as a cornerstone of their climate strategies, which haven’t changed despite the shifting political winds in the US.—
Tim McDonnell,
semafor.com,
7 Oct. 2025
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Four decades later, Marshall is remembered as a cornerstone and real foundation of two Super Bowl teams for the Giants.—
MSNBC Newsweek,
MSNBC Newsweek,
6 Oct. 2025
Noun
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Corps officials will evaluate each request on a case-by-case basis.—
Arkansas Online,
Arkansas Online,
7 Oct. 2025
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The Chiefs out-gained the Jaguars by more than 150 yards and were far better on a per-play basis, too.—
Kansas City Star,
Kansas City Star,
7 Oct. 2025
Noun
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Cook wants the foundation to also benefit other neurodivergent kids, like those with ADHD or dyslexia.—
Victoria Moorwood,
Cincinnati Enquirer,
4 Oct. 2025
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The foundation of this look is a timeless trench, like the Orolay lightweight double-breasted overcoat.—
Samantha Leal,
Travel + Leisure,
4 Oct. 2025
Noun
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The right to citizenship at birth has long been a bedrock principle in the United States, widely accepted to have been granted by the 14th Amendment to the Constitution in 1868.—
Arkansas Online,
Arkansas Online,
5 Oct. 2025
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The bedrock of business has always been rooted in strategy, efficiency, originality and storytelling.—
Derya Matras,
Fortune,
4 Oct. 2025
Cite this Entry
“Keystone.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/keystone. Accessed 9 Oct. 2025.
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