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Noun: underpinning  ,ún-du(r)'pin-ing
  1. The underlying support or justification of something
Verb: underpin (underpinned,underpinning)  ,ún-du(r)'pin
  1. Support from beneath
  2. Back up with evidence or authority or make more certain or confirm
    - corroborate, bear out, support

Derived forms: underpinnings

Type of: agree, check, correspond, fit, gibe, hold, hold up, jibe, marry, marry up, match, support, sustain, tally

Encyclopedia: Underpinning