phylum Cnidaria vs polyp

phylum Cnidaria and polyp both are nouns.

Word	Noun	Adjective	Verb	Adverb
phylum Cnidaria	Yes	No	No	No
polyp	Yes	No	No	No

phylum Cnidaria (noun)	polyp (noun)
hydras, polyps, jellyfishes, sea anemones, corals	one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth
	a small vascular growth on the surface of a mucous membrane