A "wall" of overlapping shields formed by medieval soldiers standing next to each other

A spring of water running between stratified rocks.

plural of wall spring

plural of wall tower

A tower built into and forming part of a line of fortification or a fortified city wall.

The rental of cinema or theater under a four-wall arrangement.

Relating to the rental of a cinema or theater for a fixed fee rather than a portion of the box office revenue.

A short wall, less than half the normal height, that supports rafters near their low end.

(meteorology) A localized, persistent, often abrupt lowering from a rain-free base of a thunderstorm.

plural of wall cloud