Nouns

(n)northeast, nor'-east, northeastward, NEthe compass point midway between north and east; at 45 degrees
(n)northeastthe direction corresponding to the northeastward compass point
(n)northeasta location in the northeastern part of a country, region, or city

Adjectives

(s)northeastern, northeasterly, northeastsituated in or oriented toward the northeast“the northeasterly part of the island”
(s)northeasterly, northeastcoming from the northeast“northeasterly winds”

Adverbs

(r)northeast, north-east, nor'-eastto, toward, or in the northeast