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.
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
Truth Social isn’t an especially strong keystone of this operation.
From Los Angeles Times ● Mar. 3, 2026
For the same color is plain around the keystone of each arch of the Old Bridge, which soars beautifully over the river upstream from the arch.
From "The Left Hand of Darkness" by Ursula K. Le Guin
Vocabulary lists containing keystone
