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
While Cox’s commanding presence was a cornerstone of the series, Pascal’s situation is uniquely different.
—
Clayton Davis, Variety, 28 May 2025
This partnership has already facilitated talent exchanges and crossover events, with the WWE x AAA Worlds Collide show being a cornerstone of this new era, aiming to showcase the best of both promotions.
—Andrew Ravens, MSNBC Newsweek, 27 May 2025
In short order, Trump pulled out of the Trans-Pacific Partnership, a cornerstone of Tokyo’s strategy to contain China (Abe had lobbied him to stay in TPP).
—William Pesek, Forbes.com, 23 May 2025
The Trump administration is seeking to end an immigration policy cornerstone that since the 1990s has offered protections to child migrants in federal custody, a move that will be challenged by advocates, according to a court filing Thursday.
—Valerie Gonzalez, Chicago Tribune, 22 May 2025
See All Example Sentences for cornerstone
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Clayton Davis, Variety, 28 May 2025
This partnership has already facilitated talent exchanges and crossover events, with the WWE x AAA Worlds Collide show being a cornerstone of this new era, aiming to showcase the best of both promotions.
—Andrew Ravens, MSNBC Newsweek, 27 May 2025
In short order, Trump pulled out of the Trans-Pacific Partnership, a cornerstone of Tokyo’s strategy to contain China (Abe had lobbied him to stay in TPP).
—William Pesek, Forbes.com, 23 May 2025
The Trump administration is seeking to end an immigration policy cornerstone that since the 1990s has offered protections to child migrants in federal custody, a move that will be challenged by advocates, according to a court filing Thursday.
—Valerie Gonzalez, Chicago Tribune, 22 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 5 Jun. 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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