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keystone

/ˈkiː.stəʊn/noun2 syllables

Keystone means: a central cohesive source of support and stability.

Synonyms for keystone7

noun, as in a central cohesive source of support and stability

anchor, mainstay, backbone, linchpin, lynchpin

noun, as in the central building block at the top of an arch or vault

key, headstone

What does keystone mean?2

noun

1

a central cohesive source of support and stability“faith is his anchor”

2

the central building block at the top of an arch or vault

Definitions from the Open English WordNet, CC BY 4.0.

Keystone in a sentence

  • Sex appeal is the keystone of our civilization.carlosalberto
  • Algeria is the keystone of stability in North Africa.Amastan
  • You are the keystone of this business.frzzl
  • Environmentalists are opposing the Keystone XL pipeline.Hybrid

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of keystone

as a noun

plural
keystones