plural of key light

(photography, film, television) The most important light, used to highlight the form and dimension of the subject.

(nautical) The waterline at which a vessel floats when light or unladen.

plural of light blue

(obsolete or historical) An illness or obstructive condition of the larynx, trachea, or lungs, found as a cause of death on bills of mortality in the 16- and 1700s; possibly croup.

(nautical, historical) A light hung out in the rigging at night when a vessel is riding at anchor.

plural of riding light

The aggregate of street lights of a city, particularly at night (often referring to the exciting attractions that the city features, especially its nightlife)

plural of pocket light

A flashlight small enough to fit in someone's pocket.