| English | Spanish |
| North-South relationship | Relaciones Norte-Sur |
| North-South relationship The connections, associations or involvement of developed nations, found predominantly in the Northern Hemisphere, with developing nations, found predominantly in the Southern Hemisphere | Relaciones Norte-Sur |
| South African method | método sudafricano |
| South America | América del Sur UP: Sudamérica |
| South America | América del Sur (UP: Sudamérica) |
| South American manatee | lamantín amazónico (Trichechus inunguis) |
| South American river dolphins | sotalia de América del Sur (Sotalia spp.) |
| South Atlantic Ocean | Océano Atlántico Sur |
| South Atlantic Ocean An ocean south of the equator between the eastern coast of South America and the western coast of Africa that extends southward to the Antarctic continent, including the Drake Passage, South Sandwich Islands and Falkand Islands | Océano Atlántico Sur |
| South Pacific Convergence Zone | Zona de Convergencia del Pacífico Sur |
| South Pacific Ocean | Océano Pacífico Sur |
| South Pacific Ocean An ocean south of the equator between Southeast Asia and Australia in the Eastern hemisphere and South America in the Western hemisphere, extending southward to the Antarctic region, including the Tasman and Coral seas and numerous islands, such as Galapagos, Solomon, Easter, Samoa, Fiji and Tonga islands, and also New Zealand and its islands | Océano Pacífico Sur |
| South Pacific Regional Environment Programme | Programa Regional del Pacífico para el Medio Ambiente |
| south Pole's ozone hole | agujero austral |
| United Nations Conference on Climate Change in Durban, South Africa, COP 17/CMP 7 | 17.º periodo de sesiones de la Conferencia de las Partes en la Convención Marco de las Naciones Unidas sobre el Cambio Climático |
| United Nations Conference on Climate Change in Durban, South Africa, COP 17/CMP 7 | 17.ª Conferencia de las Partes en la Convención Marco de las Naciones Unidas sobre el Cambio Climático |
