Backbone
Backbone noun - A column of bones supporting the trunk of a vertebrate animal.
Underpinning and backbone are semantically related. In some cases you can use "Underpinning" instead a noun "Backbone".
Nearby Word: backboned
Underpinning
Underpinning noun - An immaterial thing upon which something else rests.
Usage example: the underpinnings of the theory have recently been called into question
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Synonyms for Underpinning
Backbone and underpinning are semantically related. Sometimes you can use "Backbone" instead a noun "Underpinning".
Nearby Words: underpin, underpinned
Mutual synonyms
Related pairs
Cite this Source
Underpinning and Backbone. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/backbone/underpinning
Backbone & Underpinning. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/backbone/underpinning>.
Underpinning or Backbone. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/backbone/underpinning.
Google Ngram Viewer shows how "backbone" and "underpinning" have occurred on timeline