class Hirudinea vs leech

class Hirudinea and leech both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Hirudinea	Yes	No	No	No
leech	Yes	No	Yes	No

class Hirudinea (noun)	leech (noun)
hermaphroditic aquatic or terrestrial or parasitic annelids	carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end
	a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

class Hirudinea (verb)	leech (verb)
	draw blood