underpinning

noun

un·​der·​pin·​ning ˈən-dər-ˌpi-niŋ How to pronounce underpinning (audio)
1
: the material and construction (such as a foundation) used for support of a structure
2
: something that serves as a foundation : basis, support
often used in plural
the philosophical underpinnings of educational methods
3
: underwear
usually used in plural
4
: a person's legs
usually used in plural

Examples of underpinning in a Sentence

the underpinnings of the theory have recently been called into question the underpinnings of the bridge were seriously damaged in the collision
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Varma will explore the cultural underpinnings of Hindu nationalism and offer some examples from Kashmir – a region claimed by India, Pakistan and China – to examine erosions of India’s democratic foundations, the news release noted. News Release, San Diego Union-Tribune, 29 Mar. 2025 These digital underpinnings, while largely invisible to most users, are essential for enabling innovation and maintaining performance at scale. Peter High, Forbes, 21 Mar. 2025 The speech at the Capitol is akin to the State of Union, but in this case, there is little expectation of a fight over Trump's authority and its constitutional underpinnings because the House and Senate are controlled by fellow Republicans. Bart Jansen, USA TODAY, 2 Mar. 2025 One change to a federal housing program that was meant to protect against gender discrimination has overtly religious underpinnings. Matthew Goldstein, New York Times, 13 Feb. 2025 See All Example Sentences for underpinning

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of underpinning was in the 15th century

Browse Nearby Words

Cite this Entry

“Underpinning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpinning. Accessed 12 Apr. 2025.

Kids Definition

underpinning

noun
un·​der·​pin·​ning ˈən-dər-ˌpin-iŋ How to pronounce underpinning (audio)
1
: the foundation used for support of a structure
2
3
: a person's legs
usually used in plural

More from Merriam-Webster on underpinning

Last Updated: - Updated example sentences
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