An arch of the thickness of one brick.

An arch of unusual form, following the curve of an ogee.

(religion) A leader of a heresy, a most prominent or leading heretic.

The smokebox of a locomotive.

Alternative form of Mayan arch

A form of corbel arch with small regular corbels.

The shaped part of the bodywork of a car or other vehicle that allows the wheel to be accessed, and in the case of front wheels, enable them to be steered.

plural of Arctic wolf spider

(obsolete) Alternative form of archlute

plural of arch-lute