From Middle English North-see, from Old English norþsǣ (“northern sea, Bristol Channel, Baltic, North Sea”), equivalent to north + sea. Cognate with West Frisian Noardsee (“North Sea”), Dutch Noordzee (“North Sea”), German Nordsee (“North Sea”), Swedish Nordsjön (“North Sea”), Icelandic Norðursjór (“North Sea”).
Proper noun 
- An inlet of the Atlantic Ocean between Britain (in the west), Scandinavia (in the east) and Germany, Netherlands, Belgium and France (in the south).
an inlet of the Atlantic Ocean betwwen Britain, Scandinavia and Germanym, the Neatherlands, Belgium and France