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

"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

Despite the pile-up of particulars, Metcalfe knows he must find the lost poem, that it is the keystone without which the story crumbles into insignificance.

From Los Angeles Times • Sep. 19, 2025

Until Columbus, Indians were a keystone species in most of the hemisphere.

From "1491" by Charles C. Mann