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.

Meanwhile, the president is "the keystone of the institution", leading the armed forces and having the power to dissolve the Assembly, Diallo said.

From Barron's • Jun. 2, 2026

Sea otters are a keystone species in kelp forest ecosystems, eating sea urchins that would otherwise consume the kelp, according to the aquarium.

From Los Angeles Times • Apr. 29, 2026

"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

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

There was a general shout of outrage, and then we recommended the building of Leper’s triumphal arch around Brinker’s keystone.

From "A Separate Peace" by John Knowles