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
These keystone species are expected to play a crucial role in shaping the ecosystem.
—
Real-Time News Team, Miami Herald, 22 Aug. 2025
The vast collection also acts as a keystone for market authentication.
—Mark Littler, Forbes.com, 21 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
See All Example Sentences for keystone
Real-Time News Team, Miami Herald, 22 Aug. 2025
The vast collection also acts as a keystone for market authentication.
—Mark Littler, Forbes.com, 21 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
See All Example Sentences for keystone
Recent Examples of Synonyms for keystone
Noun
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With superstar Luka Doncic locked down to a contract extension, the main objective for the front office is to surround their new franchise cornerstone with as many talented individuals as possible.—
Gabe Smallson,
MSNBC Newsweek,
16 Sep. 2025
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Real Estate Investments Real estate has always been a cornerstone of an investment portfolio.—
Justin Donald,
Forbes.com,
16 Sep. 2025
Noun
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Corps officials will evaluate each request on a case by case basis.—
Arkansas Online,
Arkansas Online,
16 Sep. 2025
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This creates a better environment for fuller, stronger hair to grow—something our testers began to notice after lathering up with it on a regular basis.—
Sophia Panych,
Allure,
16 Sep. 2025
Noun
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With stars like Derek Jeter, Gerrit Cole, and many others involved, the gala raised more than $375,000 in support of the foundation’s mission.—
Scott Thompson,
FOXNews.com,
13 Sep. 2025
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While some uncertainty existed about whether Hendrix intended to make his record a double or triple-disc collection, seventeen songs were issued on a single CD to lay the foundation for Experience Hendrix’s catalog refurbishment.—
Mike Alleyne Ph.D,
Forbes.com,
13 Sep. 2025
Noun
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Arakawa managed to mathematically tame these instabilities, and his scheme remains a bedrock of modern models.—
Zack Savitsky,
Quanta Magazine,
15 Sep. 2025
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These are organized into geologic map units, which range in composition from loose sand and gravel to very old bedrock.—
David Bressan,
Forbes.com,
13 Sep. 2025
Cite this Entry
“Keystone.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/keystone. Accessed 18 Sep. 2025.
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