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
There’s a really solid understanding of mecha design underpinning the art direction, too, and that’s a rare thing to see these days.
—
Ollie Barder, Forbes.com, 19 Sep. 2025
Their violent clash of characters in the Marvel series, which has been a solid performer on Disney+, underpinned the original Netflix action series.
—Etan Vlessing, HollywoodReporter, 18 Sep. 2025
The claim, while bold, highlights Microsoft’s ambition to compete in the high-performance computing race that underpins AI development.
—Neetika Walter, Interesting Engineering, 18 Sep. 2025
But there’s a social contract underpinning that danger that says that burners look out for one another.
—Denver Nicks, Rolling Stone, 14 Sep. 2025
See All Example Sentences for underpin
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Ollie Barder, Forbes.com, 19 Sep. 2025
Their violent clash of characters in the Marvel series, which has been a solid performer on Disney+, underpinned the original Netflix action series.
—Etan Vlessing, HollywoodReporter, 18 Sep. 2025
The claim, while bold, highlights Microsoft’s ambition to compete in the high-performance computing race that underpins AI development.
—Neetika Walter, Interesting Engineering, 18 Sep. 2025
But there’s a social contract underpinning that danger that says that burners look out for one another.
—Denver Nicks, Rolling Stone, 14 Sep. 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 19 Sep. 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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