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Added 10 October 2026

underpinning

noun

noun Definition from Wiktionary (CC BY-SA). More about underpinning at Wordnik → Where our words come from →

A support or foundation, especially as a structure of masonry that supports a wall.
This house's underpinning is not up to standard.
A basis for something.
I would like to know more about the underpinning of this political theory.
The lower body or legs.

verb

present participle and gerund of underpin

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