A wall of defence; a wall or outwork raised to defend another.

A barrier or outwork in front of a fortress.

an outer defence.

An advanced wall or earthwork thrown out in front of the main fortifications; the outer wall or series of walls of a fortification or fortress.

An artificial mound or wall thrown up in front of the main rampart. In early use, a covered way.

A ‘work’ or defensive structure in the front of a building or fortified place.

= vaumure, n.

Fortification. ‘A narrow detached rampart, placed immediately in front of an important work, to protect it from being breached’ (Stocqueler).

A first or front defence; a bulwark.

The foremost defence or bulwark (see fight, n. 5b).

Any part of the fortifications of a place lying outside the parapet; any detached or advanced work forming part of the defence of a place; an outer…

Fortification. An outwork thrown out to occupy advantageous ground beyond a hornwork (see quots. 1859 1975).

A military outwork; a mound or bank defended by palisades and watchtowers. false braye (< French fausse braie): an advanced parapet surrounding…

= crownwork, n. 2.