The term SUN, FOR ONE can be broken down into four crossword solutions: STAR (4 letters), ORB (3 letters), RHYME (5 letters), and GSTAR (5 letters). The sun is a STAR, and it is the brightest object in the sky. It is an ORB of gas that gives off light and heat, and it is the source of life on Earth. A RHYME is a type of figurative language that uses words with similar sounds to create a poetic effect. GSTAR is an acronym for Global STAR, which is a satellite-based navigation system used by the military and other organizations.