world vs celestial body

world and celestial body both are nouns.

Word	Noun	Adjective	Verb	Adverb
world	Yes	Yes	No	No
celestial body	Yes	No	No	No

world (noun)	celestial body (noun)
all of the living human inhabitants of the earth	natural objects visible in the sky
all of your experiences that determine how things appear to you
the concerns of this life as distinguished from heaven and the afterlife
people in general; especially a distinctive group of people with some shared interest
people in general considered as a whole
the 3rd planet from the sun; the planet we live on
everything that exists anywhere
a part of the earth that can be considered separately

world (adjective)	celestial body (adjective)
involving the entire earth; not limited or provincial in scope