underpinning — a solid foundation laid below ground level to support or strengthen a building
Part of speech: NOUN
Definition: a solid foundation laid below ground level to support or strengthen a building
Pronunciation (IPA): /ˈʌndərˌpɪnɪŋ/
Example Sentences
- The professor's research provided the scientific underpinning for the new medical treatment.
- My diet plan lacks proper underpinning - it's basically just 'eat less pizza'.
- The underpinning of democracy is citizen participation in voting.
underpinning
NOUN[/ˈʌndərˌpɪnɪŋ/]
a solid foundation laid below ground level to support or strengthen a building

Massive stone underpinnings keep the ancient cathedral standing firm above.

Under the house, pinning for solid foundation support!

Strong underpinning from the beginning leads to winning!
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🎤Pronunciation
🌳Etymology
Origin
From the verb 'underpin' (to support from below), which combines the prefix 'under-' (below) with 'pin' (to fasten or support). The term emerged in Middle English as a practical architectural concept.
Breakdown
under- (below) + pin (fasten/support) + -ning (gerund/present participle) = underpinning (the act of supporting from below or the structure that supports)
🎵Rhyme
🔗Collocations
📝Examples
“The professor's research provided the scientific underpinning for the new medical treatment.”
“My diet plan lacks proper underpinning - it's basically just 'eat less pizza'.”
“The underpinning of democracy is citizen participation in voting.”
“His confidence has no real underpinning - he just watched one YouTube video about cooking.”
📚Related Words
Synonyms
Antonyms
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