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.
Rapid and transformative technology innovation / adoption represent key underpinnings of these changes. John Werner, Forbes.com, 6 June 2025 The change was part of a growing effort around the country to remove names of those who had contributed to the structural underpinnings of segregated communities from schools, streets, and monuments. Alfredo Sosa, Christian Science Monitor, 18 May 2025 The underpinnings of a global order can be traced to the age of discovery, when Europeans first learned to circumnavigate the globe, then established a presence at vast distances, and followed that with empires. Margaret MacMillan, The Atlantic, 30 Apr. 2025 There is a clear case that the development of character is a critical underpinning of culture, but there is so much more. Mary Crossan, Forbes.com, 22 May 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 10 Jun. 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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