direct current vs electricity

direct current and electricity both are nouns.

Word	Noun	Adjective	Verb	Adverb
direct current	Yes	No	No	No
electricity	Yes	No	No	No

As nouns, electricity is a hypernym of direct current; that is, electricity is a word with a broader meaning than direct current:

direct current: an electric current that flows in one direction steadily
electricity: energy made available by the flow of electric charge through a conductor

Other hypernyms of direct current include electrical energy, power.

direct current (noun)	electricity (noun)
an electric current that flows in one direction steadily	keen and shared excitement
	a physical phenomenon associated with stationary or moving electrons and protons
	energy made available by the flow of electric charge through a conductor