world vs terrestrial planet

world and terrestrial planet both are nouns.

Word	Noun	Adjective	Verb	Adverb
world	Yes	Yes	No	No
terrestrial planet	Yes	No	No	No

world (noun)	terrestrial planet (noun)
all of the living human inhabitants of the earth	a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system
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)	terrestrial planet (adjective)
involving the entire earth; not limited or provincial in scope