cornerstone
noun
cor·ner·stone
ˈkȯr-nər-ˌstōn 
1
: a stone forming a part of a corner or angle in a wall
specifically
: such a stone laid at a formal ceremony
2
: a basic element : foundation
a cornerstone of foreign policy
Examples of cornerstone in a Sentence
Officials held a ceremony to lay the cornerstone for a new library.
Trust is the cornerstone of their relationship.
Recent Examples on the Web
As products shift from enhancing operations to becoming operational cornerstones, management complexity increases.
—
Thomas Ryd, Forbes.com, 16 May 2025
The office chair, often overlooked as just an accessory to a desk, is a cornerstone of this setup.
—Jené Luciani Sena
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 15 May 2025
Under the current administration, countering religious persecution abroad must also be a cornerstone of U.S. foreign policy.
—Kevin Sabet, MSNBC Newsweek, 15 May 2025
More than 850 local suppliers contributed to the ambitious task of constructing the legendary town of Macondo from the ground up, turning a cornerstone of Colombian literature into a tangible, culturally rich reality.
—Anna Marie De La Fuente, Variety, 15 May 2025
See All Example Sentences for cornerstone
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Thomas Ryd, Forbes.com, 16 May 2025
The office chair, often overlooked as just an accessory to a desk, is a cornerstone of this setup.
—Jené Luciani Sena
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 15 May 2025
Under the current administration, countering religious persecution abroad must also be a cornerstone of U.S. foreign policy.
—Kevin Sabet, MSNBC Newsweek, 15 May 2025
More than 850 local suppliers contributed to the ambitious task of constructing the legendary town of Macondo from the ground up, turning a cornerstone of Colombian literature into a tangible, culturally rich reality.
—Anna Marie De La Fuente, Variety, 15 May 2025
See All Example Sentences for cornerstone
Cite this Entry
“Cornerstone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cornerstone. Accessed 25 May. 2025.
Copy CitationKids Definition
cornerstone
noun
cor·ner·stone
ˈkȯr-nər-ˌstōn
1
: a stone forming part of a corner in a wall
2
: something of basic importance
the cornerstone of our foreign policy
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