light (visible electromagnetic wave; electrical device providing light) / clearance / span (engineering)

third-person singular present indicative of lucere

light source (mainly used in architectural jargon) / highlight (bright part of a painting or image) / specular highlight (in 3D graphics)

(astronomy) light year (distance that light travels in vacuum in one Julian year (365.25 days) or 9.461 trillion kilometres)

plural of anno luce

(idiomatic, transitive with su) to shed light (on)

(idiomatic, transitive with su) to shed light (on)

(transitive) to give birth to

(physics) speed of light

to see the light