noun.the luminous celestial body around which the earth and other planets revolve, from which they receive heat and light, which is composed mainly of hydrogen and helium, and which has a mean distance from earth of about 93,000,000 miles (150,000,000 kilometers), a linear diameter of 864,000 miles (1,390,000 kilometers), and a mass 332,000 times greater than earth

• played in the sun all day
• from sun to sun

noun.a celestial body like the sun: star

noun.the heat or light radiated from the sun

verb.to expose to or as if to the rays of the sun

verb.to sun oneself