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cornerstone Synonyms

Another word for cornerstone

Choosing another word for cornerstone depends on context, so the 13 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

An important quality, principle, or feature upon which a particular system, relationship, or organization is based and depends.

Usage Example

"Mutual trust and open communication are the foundation of any successful partnership."

Strongest
foundation
bedrock
linchpin
Strong
mainstay
pillar
backbone
keystone
anchor
basis
heart

• noun (Context 2)

A stone that forms the base of a corner of a building, joining two walls and often laid in a formal ceremony with an inscription recording the construction date.

Usage Example

"The mayor was invited to lay the ceremonial foundation stone for the new public library."

Strongest
foundation stone
Weak
headstone
quoin

• Nearby Words

corner
cornered
cornerman
cornerstone
cornet
cornetfish
cornetto

Cite this Entry

Wordmom. (2026). Synonyms for Cornerstone. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/cornerstone
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