- present participle of underpin.
underpinning
Americannoun
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underpinnings
plural
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a system of supports beneath a wall or the like.
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Often underpinnings. a foundation or basis.
to uncover the emotional underpinnings of an illness.
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Informal. underpinnings,
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underwear, especially women's underwear.
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the legs.
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noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of underpinning
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The basic logic underpinning his thinking is that the more people who own and use bitcoin, the greater the adoption of its network, which can provide a base for assessing its value.
From MarketWatch ● Sep. 28, 2026
Yet, the technology underpinning autonomous warfare risks outpacing the Russian and Ukrainian frameworks for maintaining some degree of human control over weapons.
From Salon ● Sep. 24, 2026
The AI product space is increasingly competitive, underpinning demand for computing power and AI infrastructure, the strategists add.
From The Wall Street Journal ● Sep. 23, 2026
This sets up Shopify to benefit from “the infrastructure layer underpinning AI-driven commerce rather than being at risk of displacement.”
From The Wall Street Journal ● Sep. 18, 2026
In the recognition by Pythagoras and Plato that the Cosmos is knowable, that there is a mathematical underpinning to nature, they greatly advanced the cause of science.
From "Cosmos" by Carl Sagan
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Escher is also the first to ever explore the mathematical underpinnings of his mind-bending scenes, looking at the numerical, geometric and computational concepts that lie at the heart of his most iconic images.
From The Wall Street Journal ● Sep. 27, 2026
Warsh hasn’t given the intellectual underpinnings for his “swerve” away from how Fed chairs over the past two decades have communicated, Tetlow noted.
From MarketWatch ● Aug. 27, 2026
His association with Rand was seldom highlighted during his Fed tenure, but even a casual reading of those essays exposes the Randian underpinnings — and the Randian self-contradictions — of his Fed policies.
From Los Angeles Times ● Jun. 25, 2026
He charms the staff with his knowledge of these obscure machines – pointing out the bellows that power a church organ, and the pneumatic underpinnings of a piano roll player.
From BBC ● May 14, 2026
Both were thoroughgoing materialists, not in prizing possessions but in holding that matter alone provided the underpinnings of the world.
From "Cosmos" by Carl Sagan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.