- any of various objects or spaces of crescentlike or semicircular outline or section.
- (in the plane of a wall) an area enframed by an arch or vault.
- a painting, sculpture, or window filling such an area.
- a work consisting of a salient angle with two flanks and an open gorge.
- a towing ring in the trail plate of a towed vehicle, as a gun carriage.
- Luna (def. 3).
- anything that is shaped like a crescent
- an oval or circular opening to admit light in a dome
- a semicircular panel containing a window, mural, or sculpture
- a ring attached to a vehicle, into which a hook is inserted so that it can be towed
- a type of fortification like a detached bastion
- a case fitted with a bracket to hold the consecrated host
