What is the meaning of Abutment?

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.

Source: wiktionary.org