lunette

A small opening in a vaulted roof of a circular or crescent shape.

A crescent-shaped recess or void in the space above a window or door.

An image or other representation of a crescent moon.

A field work consisting of two projecting faces forming a wedge each of which extends from one of two parallel flanks.

A luna: a crescent-shaped receptacle, often glass, for holding the (consecrated) host (the bread of communion) upright when exposed in the monstrance.

A type of flattened glass used in watch-making.

The circular hole in the guillotine in which the victim's neck is placed.

A type of crescent-shaped dune blown up along a lake basin, especially in dry areas of Australia.

A half horseshoe, lacking the sponge.

A piece of felt to cover the eye of a vicious horse.