| Noun | 1. | sun - a typical star that is the source of light and heat for the planets in the solar system; "the sun contains 99.85% of the mass in the solar system"chromosphere - a gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun photosphere - the intensely luminous surface of a star (especially the sun) solar system - the sun with the celestial bodies that revolve around it in its gravitational field star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior | |
| 2. | sun - the rays of the sun; "the shingles were weathered by the sun and wind" | |
| 3. | sun - a person considered as a source of warmth or energy or glory etc | |
| 4. | sun - any star around which a planetary system evolvesstar - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior | |
| 5. | Sun - first day of the week; observed as a day of rest and worship by most Christiansweekend - a time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one Sunday | |
| Verb | 1. | sun - expose one's body to the sunlie - be lying, be prostrate; be in a horizontal position; "The sick man lay in bed all day"; "the books are lying on the shelf" | |
| 2. | sun - expose to the rays of the sun or affect by exposure to the sun; "insolated paper may turn yellow and crumble"; "These herbs suffer when sunned"expose - expose or make accessible to some action or influence; "Expose your students to art"; "expose the blanket to sunshine" | |