Definition of underpinning

Definition of underpinning
  1. underpinning Verb Present participle of underpin
  2. underpinning Noun A support or foundation, especially as a structure of masonry that supports a wall or a metaphorical basis for something.
  3. underpin Verb To support from below with props or masonry.
  4. underpin Verb To give support to; to corroborate.
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