wiggler vs class Oligochaeta

wiggler and class Oligochaeta both are nouns.

Word	Noun	Adjective	Verb	Adverb
wiggler	Yes	No	No	No
class Oligochaeta	Yes	No	No	No

wiggler (noun)	class Oligochaeta (noun)
terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers	earthworms
larva of a mosquito
one who can't stay still (especially a child)