outer wall

Hard-pressed brick of a light colour makes an excellent outer wall-surface.

He found his way past the outer wall, through the open gate where the weeds were already twining.

The doors opened inwards and those in the outer wall were supplied with bolts (pessul) and bars (serae).

The outer wall flew outward in an explosion of flying masonry.

This is the name of the narrow spit of land which forms the outer wall of the magnificent harbor of Kingston.