decoy vs accomplice

decoy and accomplice both are nouns.

Word	Noun	Adjective	Verb	Adverb
decoy	Yes	No	Yes	No
accomplice	Yes	No	No	No

As nouns, accomplice is a hypernym of decoy; that is, accomplice is a word with a broader meaning than decoy:

decoy: a beguiler who leads someone into danger (usually as part of a plot)
accomplice: a person who joins with another in carrying out some plan (especially an unethical or illegal plan)

Other hypernyms of decoy include confederate, beguiler, cheat, cheater, deceiver, slicker, trickster.

decoy (noun)	accomplice (noun)
something used to lure fish or other animals into danger so they can be trapped or killed	a person who joins with another in carrying out some plan (especially an unethical or illegal plan)
a beguiler who leads someone into danger (usually as part of a plot)

decoy (verb)	accomplice (verb)
lure or entrap with or as if with a decoy