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cornerstone

noun

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as in foundation
an immaterial thing upon which something else rests a concern for basic human rights was the cornerstone of the president's foreign policy

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corners

cornerstone

cornerstones

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“Cornerstone.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cornerstone. Accessed 6 Dec. 2022.

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More from Merriam-Webster on cornerstone

Nglish: Translation of cornerstone for Spanish Speakers

Britannica English: Translation of cornerstone for Arabic Speakers

Britannica.com: Encyclopedia article about cornerstone

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