The term "solar orb" is often used as a synonym for the sun, but there are many other words that can be used to describe this celestial body. Some common synonyms include "day-star," "solar disk," "star of the heavens," "orb of the day," and "radiant orb." Other more poetic synonyms might include "fiery sphere," "heavenly body," "king of the sky," or "luminous globe." Regardless of the term used, the sun remains the center of our solar system and the source of light, warmth, and life for all living things on our planet.