What does "natural light" mean?

Light as supplied by nature (non-manmade light sources), such as (especially) the Sun or (sometimes) the Moon and the stars.

What is a synonym for "natural light"?

Common synonyms include: daylight.

noun

noun ·Rare ·Advanced level

Noun

1
Light as supplied by nature (non-manmade light sources), such as (especially) the Sun or (sometimes) the Moon and the stars. uncountable
"Continuous runs of patent glazing in the roof and walls, down to some 6 ft. above ground level, provide abundant natural light."
2
Innate wisdom or knowledge. archaic, uncountable
"...unless we will wink against our own natural Light, we are without any further Scruple to acknowledge That God does exist."

"Continuous runs of patent glazing in the roof and walls, down to some 6 ft. above ground level, provide abundant natural light."