All the electromagnetic radiation given off by the Sun, especially that in the visible spectrum that bathes the Earth.
(ux)
{{quote-journal|en|date=2013-06-08|volume=407|issue=8839|page=55|magazine=The Economist
(quote-journal)
Brightness, hope; a positive outlook.
(syn of).
(syn of).
To work the side (at a secondary job) during the daytime.