Cornerstone
Cornerstone noun - An immaterial thing upon which something else rests.
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Synonyms for Cornerstone
Rule and cornerstone are semantically related. In some cases you can use "Rule" instead a noun "Cornerstone".
Rule
Rule noun - A statement spelling out the proper procedure or conduct for an activity.
Cornerstone and rule are semantically related. Sometimes you can use "Cornerstone" instead a noun "Rule".
How words are described
Both words in one sentence
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Vito killing Fanucci and deposing the local authority marks the cornerstone of his rule.
Source: Film / The Godfather - The Rule of Three is in full effect, and it forms a cornerstone of many practitioner trials.
Source: Literature / Pact - Whilst The Golden Rule and "if you don't have anything nice to say" may not exactly be a cornerstone of Alternian society, there is still the understanding that cooperation is important — particularly because it is necessarily trait for battling other teams.
Cite this Source
Rule and Cornerstone. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/cornerstone/rule
Cornerstone & Rule. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/cornerstone/rule>.
Rule or Cornerstone. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/cornerstone/rule.
Google Ngram Viewer shows how "cornerstone" and "rule" have occurred on timeline