fighting cock vs cock

fighting cock and cock both are nouns.

Word	Noun	Adjective	Verb	Adverb
fighting cock	Yes	No	No	No
cock	Yes	No	Yes	No

As nouns, cock is a hypernym of fighting cock; that is, cock is a word with a broader meaning than fighting cock:

fighting cock (noun)	cock (noun)
a cock bred and trained for fighting	adult male bird
	adult male chicken
	faucet consisting of a rotating device for regulating flow of a liquid
	the part of a gunlock that strikes the percussion cap when the trigger is pulled
	obscene terms for penis

fighting cock (verb)	cock (verb)
	set the trigger of a firearm back for firing
	to walk with a lofty proud gait, often in an attempt to impress others
	tilt or slant to one side