(physics) An electromagnetic wave of light. / (physics, obsolete) A wave of the luminiferous ether.

(astronomy, physics) A unit of length equal to the distance light travels in one hour

(chiefly in the plural) One of the electric lights used at Christmas to decorate a tree, house, etc.

(astronomy) A phenomenon that produces an apparent motion of celestial objects about their true positions, dependent on the velocity of the observer.

plural of light-weight

Alternative form of lightweight

Alternative form of lightweight

(informal) A soldier of the light infantry.

(idiomatic) Synonym of hold a candle

plural of light bob