Keystone
Keystone noun - An immaterial thing upon which something else rests.
Usage example: a committed socialist who argues that greed is the keystone of capitalism
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Synonyms for Keystone
Nucleus
Nucleus noun - A thing or place that is of greatest importance to an activity or interest.
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Synonyms for Nucleus
Keystone and nucleus are semantically related. Sometimes you can use "Keystone" instead a noun "Nucleus".
Nearby Words: nuclear, nucleic
Mutual synonyms
How words are described
Cite this Source
Nucleus and Keystone. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/keystone/nucleus
Keystone & Nucleus. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/keystone/nucleus>.
Nucleus or Keystone. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/keystone/nucleus.
Google Ngram Viewer shows how "keystone" and "nucleus" have occurred on timeline