Sky signs are also known as astronomical phenomena or celestial events. Some common synonyms for sky signs include astronomical occurrences, celestial phenomena, heavenly bodies, cosmic events, and stellar phenomena. These terms are often used to describe events that occur in the night sky, such as meteor showers, eclipses, and the passage of comets. Other synonyms for sky signs might include astronomical observations, space phenomena, or cosmic occurrences. Regardless of their name, these celestial events can be awe-inspiring and profound, reminding us of the immense size and complexity of the universe and our place in it.