keystone
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"We are committed to working with local people to minimise the risk of effects from beavers on other land uses, while enabling beavers to resume their place as a keystone species in our ecosystem."
From BBC ● Apr. 21, 2026
She pointed to the 1967 Outer Space Treaty, a keystone document on international space law that President Lyndon Johnson signed onto.
From Salon ● Apr. 9, 2026
On immigration, the keystone of Trump’s policy platform, he faced a number of setbacks.
From Los Angeles Times ● Apr. 5, 2026
Last year, some 1,000 U.S. troops withdrew from neighboring Niger, ending a nearly decadelong partnership that was the keystone of U.S. counterterrorism operations in the region.
From The Wall Street Journal ● Nov. 2, 2025
I must set the keystone in the arch.
From "The Left Hand of Darkness" by Ursula K. Le Guin
Vocabulary lists containing keystone
