"Light world" is a term that can have various synonyms depending on its context or use. One of its synonyms is "heavenly realm," which pertains to a realm of existence believed to be the residence of divine beings and the souls of the departed that have achieved enlightenment or salvation. Another synonym is "luminous sphere," which pertains to an illuminating body or celestial object that radiates light and energy. "Radiant realm," "glowing dimension," and "effulgent universe" are also synonyms for "light world," which conveys the idea of brightness, brilliance, and clarity. In essence, "light world" is a phrase that encompasses different meanings and interpretations, and its synonyms provide more descriptive alternatives to its use.