Underpinning

Underpinning - Other Definitions

• (p. pr. & vb. n.) of Underpin
  
  
• (n.) The act of one who underpins; the act of supporting by stones, masonry, or the like.
  
  
• (n.) That by which a building is underpinned; the material and construction used for support, introduced beneath a wall already constructed.
  
  
• (n.) The foundation, esp. of a frame house.