underpin

verb

un·​der·​pin ˌən-dər-ˈpin How to pronounce underpin (audio)
underpinned; underpinning; underpins
Synonyms of underpinnext

transitive verb

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
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.
The resumption of uninterrupted energy flows is what underpins any sustained stock market recovery, according to investment manager Orbis. Joseph Wilkins, CNBC, 20 Apr. 2026 The business model underpinning kids and family animation is under growing strain, as a post-streaming contraction collides with declining linear viewership and tighter commissioning, a panel at Spain’s Quirino Future Lab session underscored on Wednesday. Callum McLennan, Variety, 17 Apr. 2026 In a country without the NEA, NEH and IMLS, hundreds of small local arts groups would likely cease to exist entirely — and with them, the community, education and enlightenment that underpin our increasingly fragile, fractured society. Arts Editor, Los Angeles Times, 17 Apr. 2026 The company has long invested in the technical infrastructure underpinning its feeds, creating a streaming backbone full of redundancies for Thursday Night Football and commissioning two new production trucks—nicknamed Bird and Magic—for its traveling NBA shows. Jacob Feldman, Sportico.com, 15 Apr. 2026 See All Example Sentences for underpin

Word History

First Known Use

1522, in the meaning defined at sense 1

Time Traveler
The first known use of underpin was in 1522

Browse Nearby Words

Cite this Entry

“Underpin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpin. Accessed 24 Apr. 2026.

Kids Definition

underpin

verb
un·​der·​pin -ˈpin How to pronounce underpin (audio)
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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