[{"Bold_text": "noun", "List Items": ["Architecture, Civil Engineering.a masonry mass supporting and receiving the thrust of part of an arch or vault.a force that serves to abut arch or vault.a mass, as of masonry, receiving the arch, beam, truss, etc., at each end of a bridge.a mass or structure for resisting the pressure of water on a bridge, pier, or the like.each of the parts of a canyon or the like receiving the thrusts of an arch dam.a structure for absorbing tensions from reinforcing strands for concrete being prestressed.", "a masonry mass supporting and receiving the thrust of part of an arch or vault.", "a force that serves to abut arch or vault.", "a mass, as of masonry, receiving the arch, beam, truss, etc., at each end of a bridge.", "a mass or structure for resisting the pressure of water on a bridge, pier, or the like.", "each of the parts of a canyon or the like receiving the thrusts of an arch dam.", "a structure for absorbing tensions from reinforcing strands for concrete being prestressed.", "the place where projecting parts meet; junction.", "Dentistry.a tooth or tooth root that supports or stabilizes a bridge, denture, or other prosthetic appliance."]}]