sunshine

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The light or the direct rays from the sun.
• noun The warmth given by the sun's rays.
• noun A location or surface on which the sun's rays fall.
• noun Radiant cheerfulness; geniality.
• noun A source of cheerfulness.
• noun Public access or scrutiny.

from The Century Dictionary.

• noun The light of the sun, or the space on which it shines; the direct rays of the sun, or the place where they fall.
• noun Figuratively, the state of being cheered by an influence acting like the rays of the sun; anything having a genial or beneficial influence; brightness; cheerfulness.
• Sunny; sunshiny; hence, prosperous; untroubled.
• Of or pertaining to the sunshine; of a fair-weather sort.

from the GNU version of the Collaborative International Dictionary of English.

• noun The light of the sun, or the place where it shines; the direct rays of the sun, the place where they fall, or the warmth and light which they give.
• noun Anything which has a warming and cheering influence like that of the rays of the sun; warmth; illumination; brightness.
• adjective Sunshiny; bright.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun UK Friendly form of address often reserved for juniors.
• noun UK Ironic form of address used to an inferior or troublemaker.
• noun humorous Used to address someone who has just woken up and/or is very sleepy.
• adjective Open to and permitting public access, especially with regard to activities that were previously closed-door or back-room meetings.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun moderate weather; suitable for outdoor activities
• noun the rays of the sun
• noun the quality of being cheerful and dispelling gloom