Definition of "sun"
To expose the eyes to the sun as part of the Bates method.
To be exposed to the sun.
To warm or dry in the sunshine.
To expose to the warmth and radiation of the sun.
Sunrise or sunset.
Something like the sun in brightness or splendor.
The light and warmth which is received from the sun.
A star, especially when seen as the centre of any single solar system.
The star that the Earth revolves around and from which it receives light and warmth.