wiggler vs earthworm

wiggler and earthworm both are nouns.

Word	Noun	Adjective	Verb	Adverb
wiggler	Yes	No	No	No
earthworm	Yes	No	No	No

As nouns, wiggler and earthworm are synonyms defined as:

wiggler and earthworm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers

Other synonyms of wiggler include angleworm, crawler, dew worm, fishing worm, fishworm, nightcrawler, nightwalker, red worm.

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