(uncountable) The natural medium emanating from the sun and other very hot sources (now recognised as electromagnetic radiation with a wavelength of 400-750 nm), within which vision is possible.
As you can see, this spacious dining-room gets a lot of light in the mornings.
A source of illumination.
Put that light out!
Spiritual or mental illumination; enlightenment, useful information.
Can you throw any light on this problem?
(in plural, now rare) Facts. pieces of information; ideas, concepts.
A notable person within a specific field or discipline.
Picasso was one of the leading lights of the cubist movement.
A point of view, or aspect from which a concept, person or thing is regarded.
I'm really seeing you in a different light today.
Magoon's governorship in Cuba was viewed in a negative light by many Cuban historians for years thereafter.
A flame or something used to create fire.
Hey, buddy, you got a light?
A window, or space for a window in architecture
This facade has eight south-facing lights.
The series of squares reserved for the answer to a crossword clue
The average length of a light on a 15x15 grid is 7 or 8.
(informal) A cross-light in a double acrostic or triple acrostic.