counterfeit vs phoney

counterfeit and phoney both are nouns.

Word	Noun	Adjective	Verb	Adverb
counterfeit	Yes	Yes	Yes	No
phoney	Yes	Yes	No	No

counterfeit (noun)	phoney (noun)
a copy that is represented as the original	a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives

counterfeit (adjective)	phoney (adjective)
not genuine; imitating something superior	fraudulent; having a misleading appearance

counterfeit (verb)	phoney (verb)
make a copy of with the intent to deceive