underpin
verb
un·der·pin
ˌən-dər-ˈpin 
underpinned; underpinning; underpins
1
: support, substantiate
underpin a thesis with evidence
2
: to form part of, strengthen, or replace the foundation of
underpin a structure
underpin a sagging building
Examples of underpin in a Sentence
a wall underpinned by metal beams
the central beliefs that underpin a free society
Recent Examples on the Web
The timing of the deal comes as Big Tech firms race to secure scarce land, power, and compute capacity—the foundational resources underpinning the AI race.
—
Sharon Goldman, Fortune, 15 Oct. 2025
The two harmonize beautifully, freestyling over the song’s last couple of minutes, underpinned by D’Angelo’s unmistakable electric piano embellishments.
—Jem Aswad, Variety, 15 Oct. 2025
While the smallest of its private market deals announced in 2024, Preqin is a big part of BlackRock's private markets strategy because its data brings transparency and can underpin the creation of private-asset funds for retail investors to own in their retirement accounts .
—Kevin Stankiewicz, CNBC, 14 Oct. 2025
Sustainability underpins everything Brazilian mill Vicunha produces.
—Angela Velasquez, Sourcing Journal, 14 Oct. 2025
See All Example Sentences for underpin
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Sharon Goldman, Fortune, 15 Oct. 2025
The two harmonize beautifully, freestyling over the song’s last couple of minutes, underpinned by D’Angelo’s unmistakable electric piano embellishments.
—Jem Aswad, Variety, 15 Oct. 2025
While the smallest of its private market deals announced in 2024, Preqin is a big part of BlackRock's private markets strategy because its data brings transparency and can underpin the creation of private-asset funds for retail investors to own in their retirement accounts .
—Kevin Stankiewicz, CNBC, 14 Oct. 2025
Sustainability underpins everything Brazilian mill Vicunha produces.
—Angela Velasquez, Sourcing Journal, 14 Oct. 2025
See All Example Sentences for underpin
Cite this Entry
“Underpin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpin. Accessed 21 Oct. 2025.
Copy CitationKids Definition
underpin
verb
un·der·pin
-ˈpin
1
: to give support to
underpin an argument with evidence
2
: to form part of, strengthen, or replace the foundation of
underpin a structure
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