sun (Noun) — The star that is the source of light and heat for the planets in the solar system. ex. "the sun contains 99.85% of the mass in the solar system" ex. "the Earth revolves around the Sun"
sun (Noun) — The rays of the sun. ex. "the shingles were weathered by the sun and wind"
sun (Noun) — A person considered as a source of warmth, energy or glory etc.
sun (Noun) — Any star around which a planetary system revolves.
sun (Noun) — The day between Saturday and Monday; usually regarded as the last day of the week (day 7), and the second day of the weekend; traditionally observed as a day of rest and worship by Christians.
sun (Verb) — Expose one's body to the sun.
sun (Verb) — Expose to the rays of the sun or affect by exposure to the sun. ex. "These herbs suffer when sunned"