(also Northern ) / ˈnɔːðən; NAmE ˈnɔːrðərn/ adjective
[ usually before noun ] ( abbr. N , No. ) located in the north or facing north; connected with or typical of the north part of the world or a region :
the northern slopes of the mountains
northern Scotland
a northern accent
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WORD ORIGIN
Old English northerne (from north + -ern ).