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

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

Projecting stability and an image of due processes has become a cornerstone of President Vladimir Putin’s Russia. — Zahra Ullah, CNN Money, 18 Sep. 2026

The charismatic Mamdani made the city’s affordability a cornerstone of his campaign that was fueled by social media. — Tracy Grant, Encyclopedia Britannica, 18 Sep. 2026

As a San Diego native, Barcenas is the kind of player general manager and sporting director Camille Ashton has to be looking to as a cornerstone for the Wave for years to come. — Karan Lodha, New York Times, 16 Sep. 2026