| 100% | DOVER | 5 | ___ strait, strait connecting the English Channel and the North Sea |
| 67% | NEED | 4 | Megaproject proposed as a solution to rising ocean levels in the English Channel and the North Sea (abbr.) |
| 64% | SKAGERRAK | 9 | Strait between Norway and Denmark connecting the North Sea with the Kattegat sea area |
| 56% | NORTHCHANNEL | 12 | Strait between Northern Ireland and Scotland connecting the Atlantic Ocean and the Irish Sea |
| 55% | SOLENT | 6 | The —, strait of the English Channel between the coast of Hampshire and the Isle of Wight |
| 50% | BALTIC | 6 | — Sea, body of water connected to the North Sea by the Skaggerak, Kattegat and Oresund |
| 48% | ESSEX | 5 | English county on the North Sea |
| 46% | ESSEX | 5 | County between London and the North Sea |
| 45% | TROPIC | 6 | ___ of Capricorn (line that passes through the Mozambique Channel and the Coral Sea) |
| 45% | BOSPORUS | 8 | Strait that connects the Black Sea with the Sea of Marmara |
| 44% | DAVIS | 5 | ___ strait, strait connecting Baffin Bay (Canada) and the Atlantic Ocean |
| 43% | WASH | 4 | The —, shallow inlet on the North Sea coast between Lincolnshire and Norfolk |
| 43% | TYNE | 4 | English river that flows to the North Sea at South Shields |
| 43% | OSTEND | 6 | Port and resort in Belgium on the North Sea |
| 42% | OTRANTO | 7 | Strait linking the Adriatic and Ionian seas |
| 41% | OSTEND | 6 | Port and resort in West Flanders, Belgium, on the North Sea |
| 41% | SUEZ | 4 | Canal connecting the Mediterranean and Red seas |
| 41% | MENAI | 5 | — Strait, channel of the Irish Sea that separates the Welsh mainland from Anglesey |
| 41% | SUEZ | 4 | ___ Canal (waterway connecting the Mediterranean and Red Seas) |
| 40% | WADDEN | 6 | — Sea, area extending along the North Sea coasts of The Netherlands, Germany and Denmark |
| 40% | PALK | 4 | ___ strait, strait connecting its namesake bay (India) and the Bay of Bengal |
| 40% | AZOV | 4 | Sea connected to the Black Sea by the Strait of Kerch |
| 40% | ORD | 3 | River in Western Australia that flows north to Cambridge Gulf and the Timor Sea |
| 40% | YSER | 4 | River that rises in France and reaches the North Sea at Belgium's Nieuwpoort |
| 39% | RANCE | 5 | River in NW France that flows into the English Channel between Dinard and Saint-Malo |
| 39% | RIGHTWHALE | 10 | Large sea creature such as the North Atlantic — and North Pacific — |
| 39% | YSER | 4 | 48 mi. Belgian river that rises in French Flanders and reaches the North Sea at Nieuwpoort |
| 38% | CHUKCHISEA | 10 | Body of water between Russia and Alaska north of the Bering Strait |
| 38% | DEE | 3 | River in North Wales and Cheshire that flows to the Irish Sea |