Crux
Crux noun - The central part or aspect of something under consideration.
Usage example: the crux of the problem is that the school's current budget is totally inadequate
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Synonyms for Crux
Root
Root noun - The central part or aspect of something under consideration.
Usage example: at root, it's a question of the proper limits, if any, of free speech
Crux and root are semantically related in base topic. Sometimes you can use "Crux" instead a noun "Root", if it concerns topics such as source.
Mutual synonyms
Cite this Source
Root and Crux. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/crux/root
Crux & Root. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/crux/root>.
Root or Crux. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/crux/root.
Google Ngram Viewer shows how "crux" and "root" have occurred on timeline