Available Definitions:
1) n. - The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.
2) n. - A cavity formed by cutting, digging, or scooping.
3) n. - An uncovered cutting in the earth, in distinction from a covered cutting or tunnel.
4) n. - The material dug out in making a channel or cavity.