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keystones

NOUN

essence, theme

Synonyms

WEAK

basic idea basis center core cornerstone criterion crux gist heart idea kernel linchpin mainspring marrow measure motive nub pith principle root source spring standard substance

NOUN

base

Synonyms

STRONGEST

cornerstone

STRONG

crown foundation headstone mainstay principle root support wedge

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.

Some of Therrien’s keystones hang at eye level on the wall, inviting close perusal.

From Los Angeles Times • Nov. 25, 2025

But it was clear through the rain at the Stade de France, that some of the keystones of a new England are already in place.

From BBC • Oct. 22, 2023

The visit to Francis’ ancestral homeland to renew ties with family touches on keystones of Francis’ papacy, including the importance of honoring the elderly and the human toll of migration.

From Seattle Times • Nov. 19, 2022

The island’s semiconductor industry is an increasingly indispensable node in the global supply chains for smartphones, cars and other keystones of modern life.

From New York Times • Aug. 12, 2022

Pedimented doorway, window caps, keystones, cornice and dormer trim follow the best mid-Georgian tradition.

From Seaport in Virginia George Washington's Alexandria by Moore, Gay Montague