Carrying very little. / In a light-handed manner.

(physics) A hypothetical clock, used to show time dilation, that would count the journeys of a single photon between two parallel mirrors.

Nimble; swift of foot.

(Christianity) An epithet for Jesus Christ

plural of fog light

limelight

plural of Drummond light

glimmering or imperfect light

A person who has a profound influence on others and is a source of inspiration. / That which provides guidance in times of uncertainty.

(rail transport, UK) A railway built at lower cost, with lighter track and to a lower standard than a main-line railway.