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.
Misappropriating genetics While science does not support genetic essentialism or other underpinnings of replacement theory, this exact rationale has made its way into national immigration policy. Shoumita Dasgupta, The Conversation, 13 Jan. 2025 Their prudence is warranted since the business case supporting DEI programs and their ideological underpinnings is losing ground as more research emerges. Pamela N. Danziger, Forbes, 1 Jan. 2025 Hood and fender styling allows for the Armada to have better sight lines than the Infiniti QX80 is shares much of its underpinnings with. Thomas G. Moukawsher, Newsweek, 17 Dec. 2024 Their viewpoint is that with the byzantine array of a large-scale mathematical and computational underpinning, there is indubitably a chance that unanticipated combinations and permutations are going to occur. Lance Eliot, Forbes, 27 Dec. 2024 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

Dictionary Entries Near underpinning

Cite this Entry

“Underpinning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpinning. Accessed 18 Jan. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!