sun
n. C / Un. the star that provides light and heat to the Earth during the day. It is the bright object you see in the sky from morning until evening.
n. the star around which the Earth and other planets revolve, providing the primary source of light and heat for the solar system.
The sun is very bright today.
We sat on the beach all afternoon to enjoy the warmth of the summer sun.
Ancient civilizations often personified the sun as a powerful deity, recognizing its essential role in sustaining agricultural cycles and life itself.
Usually takes the definite article 'the' and is capitalized when referring specifically to the star at the center of our solar system.
Sun is hot.The sun is hot.When referring to the specific star in our solar system, the definite article 'the' is required.