Use this domain for words related to the sun. The sun does three basic things. It moves, it gives light, and it gives heat. These three actions are involved in the meanings of most of the words in this domain. Since the sun moves below the horizon, many words refer to it setting or rising. Since the sun is above the clouds, many words refer to it moving behind the clouds and the clouds blocking its light. The sun's light and heat also produce secondary effects. The sun causes plants to grow, and it causes damage to things.