Yank vs Northern United States

Yank and Northern United States both are nouns.

Word	Noun	Adjective	Verb	Adverb
Yank	Yes	No	No	No
Northern United States	Yes	No	No	No

Yank (noun)	Northern United States (noun)
an American (especially to non-Americans)	the region of the United States lying to the north of the Mason-Dixon line
an American who lives in the North (especially during the American Civil War)