Adjectives

(a)northernin or characteristic of a region of the United States north of (approximately) the Mason-Dixon line“Northern liberals”, “northern industry”, “northern cities”
(a)northernsituated in regions of the north“the Northern Hemisphere”, “northern autumn colors”
(s)northerly, northernoriented toward the north“the northern suburbs”, “going in a northerly direction”
(s)northerly, northerncoming from the north; used especially of wind“a northern snowstorm”, “the winds are northerly”