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.
Image The presence of American troops has been the underpinning of 80 years of peace in Western Europe since the end of World War II. Paul Sonne, New York Times, 16 Feb. 2025 Shedd’s role at TTS shows one way Musk is placing his allies in agencies across the government as part of his sweeping effort to remake the federal workforce, cut trillions from the government’s budget and revamp its tech underpinnings. Cyrus Farivar, Forbes, 11 Feb. 2025 At the same time, the theater world, particularly in the non-profit space, has suffered from declining attendance that threatens its financial underpinnings. Brent Lang, Variety, 10 Feb. 2025 Despite its racist underpinnings, my grandmother loved Gone with the Wind and was always inspired by Margaret Mitchell's transformation of her family stories into a sweeping epic. Erin Crosby Eckstine, People.com, 7 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 3 Mar. 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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