Synonyms of cornerstone

cornerstone

noun

ˈkȯr-nər-ˌstōn 

as in basis

an immaterial thing upon which something else rests

a concern for basic human rights was the cornerstone of the president's foreign policy

Synonyms & Similar Words

• basis
• foundation
• bedrock
• groundwork
• keystone
• justification
• root
• core
• base
• ground
• framework
• underpinning
• premise
• theory
• support
• footing
• focus
• essence
• warp
• warp and woof
• bottom
• infrastructure
• backbone
• center
• assumption
• rationale
• heart
• shore
• substratum
• mount
• bed
• thesis
• presumption
• kernel
• prop
• anchorage
• warrant
• substructure
• bulwark
• nucleus
• hub
• stay
• brace
• buttress
• presupposition
• supposition
• touchstone
• seat
• soul
• eye
• quintessence

Example Sentences

Recent Examples of cornerstone

Horror has been a cornerstone of the industry since the beginning, but Oscar voters have rarely embraced it. — Los Angeles Times, 25 Sep. 2026

Supporting people and families affected by addiction has been a cornerstone of Kate’s work since almost the beginning of her royal life. — Simon Perry, PEOPLE, 24 Sep. 2026

If lawmakers don’t extend it, the cornerstone of the Pentagon’s legal argument will evaporate. — Eleanor Mueller, semafor.com, 21 Sep. 2026

The iconic, award-winning EGF Serum is the cornerstone of the BIOEFFECT line. — ABC News, 19 Sep. 2026