underpinning Meaning, Definition & Usage

  1. verb support from beneath
    underpin.
  2. verb support with evidence or authority or make more certain or confirm
    corroborate; support; bear out; underpin.
    • The stories and claims were born out by the evidence

WordNet


Un"der*pin`ning noun
Definitions
  1. The act of one who underpins; the act of supporting by stones, masonry, or the like.
  2. (Arch.) (a) That by which a building is underpinned; the material and construction used for support, introduced beneath a wall already constructed. (b) The foundation, esp. of a frame house. Local, U.S.

Webster 1913