| Termen/ Term | Nr. apariții/ No. occurrences |
| SIEBEN GEBIRGE | 5 |
| SIEGEN | 6 |
| SIENA | 1 |
| SIERRA CORDA | 1 |
| SIERRA MADRE | 1 |
| SIERRA MAESTRA | 1 |
| SIERRA NEVADA | 4 |
| SIERRA TONATINO | 1 |
| SIGHISOARA | 1 |
| SIKKIM | 13 |
| SIKKIM STAT FEDERAL | 2 |
| SILA GRANDE | 10 |
| SILEZIA | 2 |
| SIMFEROPOL | 1 |
| SIMLA | 2 |
| SINAIA | 17 |
| SINCHIANG | 1 |
| SINGAPORE | 11 |
| SINICA | 3 |
| SINKIANG | 23 |
| SINKIANGKULDJA | 1 |
| SINOE | 14 |
| SINOE (LAC) | 1 |
| SINOP | 1 |
| SIPOAIA | 2 |
| SIR-DARIA | 1 |
| SIRACUSA | 1 |
| SIRIA | 12 |
| SIUT-GHIOL | 1 |
| SJ | 26 |
| SJEMONOVSK | 3 |
| SKENSI | 1 |
| SKOROCICE | 2 |
| SKOVROWO | 1 |
| SKOWRO | 1 |
| SKRABBOLL | 1 |
| SLANIC MOLDOVA | 1 |
| SLANOS | 1 |
| SLATIOARA | 3 |
| SLATIOARA (CODRUL SECULAR) | 2 |
| SLOVACIA | 24 |
| SLOVACIA MERIDIONALA | 1 |
| SLOVAKI | 1 |
| SLOVAKIA | 1 |
| SLOVENIA | 2 |
| SM | 2 |
| SMALLIN CAVE | 1 |
| SMARKAND | 1 |
| SMYRNA | 3 |
| SN | 2 |