word | | Terrain |
| Saint | Saint Helena | ... the islands of this group result from volcanic activity associated with the Atlantic Mid-Ocean Ridge Saint Helena: rugged, volcanic; small scattered plateaus and plains Ascension: surface covered by lava flows and ... |
| sand | Ashmore and Cartier Islands | low with sand and coral |
| sand | Coral Sea Islands | sand and coral reefs and islands (or cays) |
| sand | Gaza Strip | flat to rolling, sand- and dune-covered coastal plain |
| sand | Mali | mostly flat to rolling northern plains covered by sand; savanna in south, rugged hills in northeast |
| sand | Marshall Islands | low coral limestone and sand islands |
| sand | Niger | predominately desert plains and sand dunes; flat to rolling plains in south; hills in north |
| sand | Qatar | mostly flat and barren desert covered with loose sand and gravel |
| sand | United Arab Emirates | flat, barren coastal plain merging into rolling sand dunes of vast desert wasteland; mountains in east |
| Sandwich | South Georgia and the South Sandwich Islands | ... rising steeply from the sea, are rugged and mountainous; South Georgia is largely barren and has steep, glacier-covered mountains; the South Sandwich Islands are of volcanic origin with some active volcanoes |
| sandy | French Southern and Antarctic Lands | ... Eparses): atoll, awash at high tide; shallow (15 m) lagoon Europa Island, Glorioso Islands, Juan de Nova Island: low, flat, and sandy Tromelin Island (Iles Eparses): low, flat, sandy; likely volcanic seamount |
| sandy | Maldives | flat, with white sandy beaches |
| sandy | Nauru | sandy beach rises to fertile ring around raised coral reefs with phosphate plateau in center |
| sandy | Puerto Rico | mostly mountains with coastal plain belt in north; mountains precipitous to sea on west coast; sandy beaches along most coastal areas |
| sandy | Saudi Arabia | mostly uninhabited, sandy desert |
| sandy | Turkmenistan | flat-to-rolling sandy desert with dunes rising to mountains in the south; low mountains along border with Iran; borders Caspian Sea in west |
| sandy | United States Pacific Island Wildlife Refuges | low and nearly level sandy coral islands with narrow fringing reefs that have developed at the top of submerged volcanic mountains, which in most cases rise steeply from the ocean floor |
| sandy | Uzbekistan | mostly flat-to-rolling sandy desert with dunes; broad, flat intensely irrigated river valleys along course of Amu Darya, Syr Darya (Sirdaryo), and Zarafshon; Fergana Valley in east surrounded by mountainous Tajikistan ... |
| sandy | Western Sahara | mostly low, flat desert with large areas of rocky or sandy surfaces rising to small mountains in south and northeast |
| Savaii | Samoa | two main islands (Savaii, Upolu) and several smaller islands and uninhabited islets; narrow coastal plain with volcanic, rocky, rugged mountains in interior |
| savanna | Bhutan | mostly mountainous with some fertile valleys and savanna |
| savanna | Gabon | narrow coastal plain; hilly interior; savanna in east and south |
| savanna | Guinea-Bissau | mostly low coastal plain rising to savanna in east |
| savanna | Guyana | mostly rolling highlands; low coastal plain; savanna in south |
| savanna | Mali | mostly flat to rolling northern plains covered by sand; savanna in south, rugged hills in northeast |
| savanna | Togo | gently rolling savanna in north; central hills; southern plateau; low coastal plain with extensive lagoons and marshes |
| scant | Aruba | flat with a few hills; scant vegetation |
| scattered | Central African Republic | vast, flat to rolling, monotonous plateau; scattered hills in northeast and southwest |