chickenfeed vs hard currency

chickenfeed and hard currency both are nouns.

Word	Noun	Adjective	Verb	Adverb
chickenfeed	Yes	No	No	No
hard currency	Yes	No	No	No

As nouns, hard currency is a hypernym of chickenfeed; that is, hard currency is a word with a broader meaning than chickenfeed:

Other hypernyms of chickenfeed include cash, hard cash.

chickenfeed (noun)	hard currency (noun)
a trifling sum of money	money in the form of bills or coins
	a currency that is not likely to depreciate suddenly in value