direct electric current vs DC

direct electric current and DC both are nouns.

Word	Noun	Adjective	Verb	Adverb
direct electric current	Yes	No	No	No
DC	Yes	No	No	No

As nouns, direct electric current and DC are synonyms defined as:

direct electric current and DC: an electric current that flows in one direction steadily

Other synonyms of direct electric current include direct current.

direct electric current (noun)	DC (noun)
an electric current that flows in one direction steadily	the district occupied entirely by the city of Washington; chosen by George Washington as the site of the capital of the United States and created out of land ceded by Maryland and Virginia
	an electric current that flows in one direction steadily