An opening made in a roof to let in the light; a skylight, a dormer or garret window. (Now only as French.) Also lucarne window.

†(a) frequently in figurative context: a window allowing (esp. dim) light to enter from the top of a room or building; (b) a light in a shop or…

A window set in a roof or ceiling, for letting in daylight; the pane or frame of such a window.

(see quot.; cf. bull's-eye, n.); also see compounds 4.

Architecture. An arched aperture in a concave ceiling for the admission of light.

A panel in or on the roof of a building or vehicle made of a material which admits light.

an open area or vertical shaft in the centre of a (multi-storey) building, typically roofed with glass, bringing natural light to the lower floors…

An architectural device for deflecting the light from a wall or roof opening in a particular direction; spec. (a) a skylight set in an angled or…

a shaft which allows light to enter a room, house, apartment, etc.; spec. a vertical opening in the centre of a (multi-storey) building, typically…

A skylight not made to open.

A window or light made of glazed panels and set into a ceiling to provide natural or artificial light.