junky vs freak

junky and freak both are nouns.

Word	Noun	Adjective	Verb	Adverb
junky	Yes	No	No	No
freak	Yes	No	Yes	No

As nouns, junky and freak are synonyms defined as:

junky and freak: someone who is so ardently devoted to something that it resembles an addiction

Other synonyms of junky include addict, junkie, nut.

junky (noun)	freak (noun)
a narcotics addict	a person or animal that is markedly unusual or deformed
someone who is so ardently devoted to something that it resembles an addiction	someone who is so ardently devoted to something that it resembles an addiction

junky (verb)	freak (verb)
	lose one's nerve