Venus vs solar system

Venus and solar system both are nouns.

Word	Noun	Adjective	Verb	Adverb
Venus	Yes	No	No	No
solar system	Yes	No	No	No

Venus (noun)	solar system (noun)
type genus of the family Veneridae: genus of edible clams with thick oval shells	the sun with the celestial bodies that revolve around it in its gravitational field
the second nearest planet to the sun; it is peculiar in that its rotation is slow and retrograde (in the opposite sense of the Earth and all other planets except Uranus); it is visible from Earth as an early `morning star' or an `evening star'
goddess of love; counterpart of Greek Aphrodite