After a quick bit of searching around I think Sun, Sol, Sonne, and many more are the name of our star in various languages. On the other hand language usages is

After a quick bit of searching around I think Sun, Sol, Sonne, and many more are the name of our star in various languages. On the other hand language usages is what defines the meaning of words, so if other stars are commonly called suns, those two words are synonyms.