What is the meaning of Excavation?

The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.

Especially, the trade of digging engineered holes for building foundations, roadbed preparations, and similar purposes.

A cavity formed by cutting, digging, or scooping.

An uncovered cutting in the earth, in distinction from a covered cutting or tunnel.

The material dug out in making a channel or cavity.

Archaeological research that unearths buildings, tombs and objects of historical value.

A site where an archaeological exploration is being carried out.

Something uncovered by archaeological excavation.

The act of discovering and exposing or developing (a quality).

excavation

Source: wiktionary.org