| Country | Languages |
| South Sudan | English (official), Arabic (includes Juba and Sudanese variants) (official), regional languages include Dinka, Nuer, Bari, Zande, Shilluk |
| Southern Ocean | void |
| Spain | Castilian Spanish (official) 74%, Catalan 17%, Galician 7%, and Basque 2% note: Catalan is official in Catalonia, the Balearic Islands, and the Valencian Community (where it is known as Valencian); in the northwest corner of Catalonia (Vall d'Aran), Aranese is official along with Catalan; Galician is official in Galicia; Basque is official in the Basque Country |
| Spratly Islands | void |
| Sri Lanka | Sinhala (official and national language) 74%, Tamil (national language) 18%, other 8% note: English is commonly used in government and is spoken competently by about 10% of the population |
| Sudan | Arabic (official), English (official), Nubian, Ta Bedawie, Fur note: program of "Arabization" in process |
| Suriname | Dutch (official), English (widely spoken), Sranang Tongo (Surinamese, sometimes called Taki-Taki, is native language of Creoles and much of the younger population and is lingua franca among others), Caribbean Hindustani (a dialect of Hindi), Javanese |
| Svalbard | Norwegian, Russian |
| Swaziland | English (official, used for government business), siSwati (official) |
| Sweden | Swedish (official), small Sami- and Finnish-speaking minorities |
| Switzerland | German (official) 63.7%, French (official) 20.4%, Italian (official) 6.5%, Serbo-Croatian 1.5%, Albanian 1.3%, Portuguese 1.2%, Spanish 1.1%, English 1%, Romansch (official) 0.5%, other 2.8% (2000 census) note: German, French, Italian, and Romansch are all national and official languages |
| Syria | Arabic (official), Kurdish, Armenian, Aramaic, Circassian (widely understood); French, English (somewhat understood) |
| Taiwan | Mandarin Chinese (official), Taiwanese (Min), Hakka dialects |
| Tajikistan | Tajik (official), Russian widely used in government and business |
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This page was last updated on 3 February, 2012 |
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