What are celestial bodies ?

Earth and we humans are not along In the outer space and in this solar system but we have so many other planets. The term Celestial body is always used when we mention universe . I wanted to ask what does it means by celestial bodies.
Earth and we humans are not along In the outer space and in this solar system but we have so many other planets. The term Celestial body is always used when we mention universe . I wanted to ask what does it means by celestial bodies.