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.
Eco-consciousness and sustainability are foundational underpinnings of the BIFL concept. Kristina McGuirk, Better Homes & Gardens, 10 May 2025 To be fair, this is very much in line with the original Macross, but most modern fans entered the fandom around the time of Macross Plus, which is more straightforward as to its narrative underpinnings. Ollie Barder, Forbes.com, 25 Apr. 2025 His account begins in the Spanish colonial period, when Spaniards and other Europeans debated the philosophical underpinnings of conquest and slavery, setting in motion an ideological battle between humanism and barbarism which, Grandin thinks, continues to this day. The New Yorker, New Yorker, 23 Apr. 2025 No Liquidity The Treasury market is generally considered to be the underpinning of all asset classes, since it is used to discount the cash-flows of all assets. Vineer Bhansali, Forbes.com, 11 Apr. 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

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Cite this Entry

“Underpinning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpinning. Accessed 18 May. 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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