Abutments meaning : The point of junction between two things, in particular a support, that abuts. The solid portion of a structure that supports the lateral pressure of an arch or vault. A construction that supports the ends of a bridge; a structure that anchors the cables on a suspension bridge. The part of a valley or canyon wall against which a dam is constructed. Something that abuts, or on which something abuts. The state of abutting. That element that shares a common boundary or surface with its neighbor. The tooth that supports a denture or bridge. A fixed point or surface where resistance is obtained.