as in cornerstones
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 keystones
And how exactly does that fit into the equation of the keystones of our survival?
—
Outside Online, 12 Nov. 2025
Before we get started on the topic of human therapists that dip into AI to discover how generative AI and large language models provide therapy, let’s set the stage with a few keystones.
—Lance Eliot, Forbes.com, 19 Sep. 2025
Recent Examples of Synonyms for keystones
Noun
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At the time, disability law experts worried that if successful, the lawsuit could topple one of the legal cornerstones of disability rights in the United States.—
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The cornerstones of the collection are curves and arched silhouettes, seen primarily in bookcases, cabinets, and tables.—
Noun
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This is a year of building and construction to create solid foundations in your life, both physically and internally.—
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When money donated to charity through intermediaries primarily went to foundations, those assets were subject to a 5% payout rule.—
Noun
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Better yet, those bedrocks are as plentiful as ever.—
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The bedrocks of healthy behavior are your biggest assets for staying disease-free.—
Cite this Entry
“Keystones.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/keystones. Accessed 13 Jan. 2026.
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