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
Luigi Avantaggiato There are many reasons to cheer on the EBP and the technological advances that will underpin it.
—
IEEE Spectrum, 2 Oct. 2025
Semiconductors and the servers that sit inside data centers have underpinned the development of artificial intelligence models and applications.
—Arjun Kharpal, CNBC, 1 Oct. 2025
Confidence in business conditions and job availability has weakened sharply, raising concerns that the spending power underpinning corporate growth could falter.
—Eleanor Pringle, Fortune, 1 Oct. 2025
The chatbot is underpinned by generative artificial intelligence technology, which can create original text, images and other content in response to prompts from users.
—Ana Nicolaci Da Costa, CNN Money, 1 Oct. 2025
See All Example Sentences for underpin
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IEEE Spectrum, 2 Oct. 2025
Semiconductors and the servers that sit inside data centers have underpinned the development of artificial intelligence models and applications.
—Arjun Kharpal, CNBC, 1 Oct. 2025
Confidence in business conditions and job availability has weakened sharply, raising concerns that the spending power underpinning corporate growth could falter.
—Eleanor Pringle, Fortune, 1 Oct. 2025
The chatbot is underpinned by generative artificial intelligence technology, which can create original text, images and other content in response to prompts from users.
—Ana Nicolaci Da Costa, CNN Money, 1 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 5 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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