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underpinning

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noun un·der·pin·ning \ˈən-dər-ˌpi-niŋ\

Definition of underpinning

  1. 1 :  the material and construction (as a foundation) used for support of a structure

  2. 2 :  something that serves as a foundation :  basis, support —often used in plural <the philosophical underpinnings of educational methods>

  3. 3 :  underwear —usually used in plural

  4. 4 :  a person's legs —usually used in plural



Examples of underpinning in a sentence

  1. <the underpinnings of the theory have recently been called into question>

  2. <the underpinnings of the bridge were seriously damaged in the collision>



15th Century

First Known Use of underpinning

15th century

Other Building Terms



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