Hirudinea vs leech

Hirudinea and leech both are nouns.

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

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

Hirudinea (verb)	leech (verb)
	draw blood