shill vs decoy

shill and decoy both are nouns.

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

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

shill: a decoy who acts as an enthusiastic customer in order to stimulate the participation of others
decoy: a beguiler who leads someone into danger (usually as part of a plot)

Other hypernyms of shill include steerer.

shill (noun)	decoy (noun)
a decoy who acts as an enthusiastic customer in order to stimulate the participation of others	something used to lure fish or other animals into danger so they can be trapped or killed
	a beguiler who leads someone into danger (usually as part of a plot)

shill (verb)	decoy (verb)
act as a shill	lure or entrap with or as if with a decoy