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別の表記

• corner stone

語源

From 中期英語 corner ston; equivalent to corner +‎ stone. The figurative sense is in part after Psalm 118:22, and is also quoted several times in the New Testament.

発音

名詞

cornerstone (plural cornerstones)

1. A stone forming the base at the corner of a building.
   • 2001, “The Grudge”, performed by Tool:

     Clutch it like a cornerstone
     Otherwise it all comes down
     Justify denials and
     Grip 'em to the lonesome end

2. Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details.

   The cornerstone on the Flatiron Building is set on the Fifth Avenue facade.

3. (figuratively) That which is prominent, fundamental, noteworthy, or central.

   Exceptional service is the cornerstone of the hospitality industry.

   That is the cornerstone of any meaningful debate about budgets and projects, regulations and policies.

   • 2019 July 15, Greg Afinogenov, “The Jewish Case for Open Borders”, in Jewish Currents‎, number Summer 2019:

     Jewish immigrants came together with other foreign-born groups in organizations like the Industrial Workers of the World, helping to create one of the cornerstones of the American left.

等位語

• capstone
• foundation stone
• keystone
• milestone
• quoin
• touchstone

Further reading

• cornerstone on Wikipedia.Wikipedia

アナグラム

• nonsecretor