Definition: The word "sun" has two meanings in this context - 1) The sun itself: a celestial body that provides light, heat, and energy. 2) A term used to mean all things related to the sun, including its characteristics like warmth, strength, brightness etc., as seen from the earth. Detailed definitions for each: 1. Sun (suncs): The solar system's star at the center of the solar system, the main source of light and heat in our solar system. 2. All things related to the sun: A broad category encompassing everything that is directly or indirectly influenced by the sun.