word | | Location |
| Trinidad | Saint Lucia | Caribbean, island between the Caribbean Sea and North Atlantic Ocean, north of Trinidad and Tobago |
| Trinidad | Saint Vincent and the Grenadines | Caribbean, islands between the Caribbean Sea and North Atlantic Ocean, north of Trinidad and Tobago |
| Tristan | Saint Helena | islands in the South Atlantic Ocean, about midway between South America and Africa; Ascension Island lies 700 nm northwest of Saint Helena; Tristan da Cunha lies 2300 nm southwest of Saint Helena |
| Tromelin | French Southern and Antarctic Lands | ... Iles Crozet, Iles Kerguelen, Bassas da India, Europa Island, Glorioso Islands, Juan de Nova Island, and Tromelin Island in the southern Indian Ocean, along with the French-claimed sector of Antarctica, "Adelie ... |
| Tunisia | Algeria | Northern Africa, bordering the Mediterranean Sea, between Morocco and Tunisia |
| Tunisia | Italy | Southern Europe, a peninsula extending into the central Mediterranean Sea, northeast of Tunisia |
| Tunisia | Libya | Northern Africa, bordering the Mediterranean Sea, between Egypt and Tunisia |
| Turkey | Armenia | Southwestern Asia, east of Turkey |
| Turkey | Bulgaria | Southeastern Europe, bordering the Black Sea, between Romania and Turkey |
| Turkey | Cyprus | Middle East, island in the Mediterranean Sea, south of Turkey |
| Turkey | Georgia | Southwestern Asia, bordering the Black Sea, between Turkey and Russia |
| Turkey | Greece | Southern Europe, bordering the Aegean Sea, Ionian Sea, and the Mediterranean Sea, between Albania and Turkey |
| Turkey | Syria | Middle East, bordering the Mediterranean Sea, between Lebanon and Turkey |
| Turkey | Turkey | southeastern Europe and southwestern Asia (that portion of Turkey west of the Bosporus is geographically part of Europe), bordering the Black Sea, between Bulgaria and Georgia, and bordering the Aegean Sea and ... |
| UAE | Oman | Middle East, bordering the Arabian Sea, Gulf of Oman, and Persian Gulf, between Yemen and UAE |
| UK | France | ... Europe, bordering the Bay of Biscay and English Channel, between Belgium and Spain, southeast of the UK; bordering the Mediterranean Sea, between Italy and Spain French Guiana: Northern South America, bordering the ... |
| UK | Iceland | Northern Europe, island between the Greenland Sea and the North Atlantic Ocean, northwest of the UK |
| Ukraine | European Union | Europe between the North Atlantic Ocean in the west and Russia, Belarus, and Ukraine to the east |
| Ukraine | Romania | Southeastern Europe, bordering the Black Sea, between Bulgaria and Ukraine |
| Ural | Kazakhstan | Central Asia, northwest of China; a small portion west of the Ural River in eastern-most Europe |
| Urals | Russia | Northern Asia (the area west of the Urals is considered part of Europe), bordering the Arctic Ocean, between Europe and the North Pacific Ocean |
| Uruguay | Argentina | Southern South America, bordering the South Atlantic Ocean, between Chile and Uruguay |
| US | Bermuda | North America, group of islands in the North Atlantic Ocean, east of South Carolina (US) |
| US | Canada | Northern North America, bordering the North Atlantic Ocean on the east, North Pacific Ocean on the west, and the Arctic Ocean on the north, north of the conterminous US |
| US | French Southern and Antarctic Lands | ... de Nova Island, and Tromelin Island in the southern Indian Ocean, along with the French-claimed sector of Antarctica, "Adelie Land"; the US does not recognize the French claim to "Adelie Land |
| US | Mexico | Middle America, bordering the Caribbean Sea and the Gulf of Mexico, between Belize and the US and bordering the North Pacific Ocean, between Guatemala and the US |