underpinning

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

Definition of underpinning

1 :the material and construction (such as a foundation) used for support of a structure
2 :something that serves as a foundation :basis, support often used in plural
  • the philosophical underpinnings of educational methods
3 :underwear usually used in plural
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

Recent Examples of underpinning from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'underpinning.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of underpinning

15th century

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