plant life vs parasite

plant life and parasite both are nouns.

Word	Noun	Adjective	Verb	Adverb
plant life	Yes	No	No	No
parasite	Yes	No	No	No

plant life (noun)	parasite (noun)
(botany) a living organism lacking the power of locomotion	an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host
	a follower who hangs around a host (without benefit to the host) in hope of gain or advantage