Underpin

//ˌʌn.dəˈpɪn// verb

Definitions

Verb
  1. 1
    To support from below with props or masonry. transitive

    "You should underpin the mine roof to prevent further collapse."

  2. 2
    support from beneath wordnet
  3. 3
    To give support to; to form a basis of; to corroborate. figuratively, transitive

    "Public confidence in politicians must underpin our democracy."

  4. 4
    support with evidence or authority or make more certain or confirm wordnet

Etymology

From under- + pin.

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