north northeast vs NNE

north northeast and NNE both are nouns.

Word	Noun	Adjective	Verb	Adverb
north northeast	Yes	No	No	No
NNE	Yes	No	No	No

As nouns, north northeast and NNE are synonyms defined as:

north northeast and NNE: the compass point that is midway between north and northeast

Other synonyms of north northeast include nor'-nor'-east.

north northeast (noun)	NNE (noun)
the compass point that is midway between north and northeast	the compass point that is midway between north and northeast