keystone Definition and Meaning in English (keystone definition)
nounKeystone definition: A keystone is a crucial wedge-shaped stone positioned at the top center of an arch, which locks all other stones into place and supports the entire structure.
Definitions of Keystone
- 1noun
A keystone is a crucial wedge-shaped stone positioned at the top center of an arch, which locks all other stones into place and supports the entire structure.
- 2noun
Figuratively, a keystone refers to a central and essential element or principle upon which an entire system, plan, or idea depends for its stability and success.
Example Sentences
“The keystone of the arch was carefully placed by the ancient builders.”
“Education is the keystone of a successful society.”
“His research became the keystone for future scientific discoveries.”
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