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.
His motivation “started with climate, but then I learned you can’t do anything better for nature than protect the best keystone species.”
From Los Angeles Times ● Sep. 19, 2026
Southern red wood ants are considered a keystone species, meaning they play an important role in supporting healthy ecosystems.
From BBC ● Jun. 28, 2026
Putin traditionally attends the final day of the event to deliver keystone speeches.
From The Wall Street Journal ● Jun. 3, 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
The keystone of the arch crashed almost on their heels, and the wall above crumbled, and fell in ruin.
From "The Return of the King" by J.R.R. Tolkien
Vocabulary lists containing keystone
