DictionarylightIllumination
noun / verb / adjective

light

LYTE/laɪt/

Visible illumination that enables sight.

The lamp casts enough light to make the apple clearly visible.

Simple desk lamp casts a clear cone of illumination onto plain apple on tabletop, lit side golden and opposite side hatched shadow, brightness makes object visible.
Etymology

Old English leoht meant light or daylight—the brightness that lets things be seen. The modern sense preserves that concrete meaning, whether the illumination comes from daylight or an artificial source.

In context

TED3:13
from space are shining up into the atmosphere, where they bounce around and create this featureless smog of light. And that featureless smog of light has a name. It's called light pollution.
The problem of light pollution -- and 5 ridiculously easy ways to fix it | Kelsey Johnson

More examples

  • Morning sunlight lights the kitchen through two large windows.
  • She turns on a light beside the couch.
  • He chooses light blue paint for the bedroom.
  • We need more light to read these tiny instructions.

Forms

light · lights · lit · lighted · lighting · lighter · lightest

lighting noun — Illumination provided in a particular space.

Similar words

illumination
More formal, often referring to light supplied to a space.
glow
Suggests a soft, steady light rather than illumination generally.