word | | Terrain |
| belt | Brazil | mostly flat to rolling lowlands in north; some plains, hills, mountains, and narrow coastal belt |
| belt | El Salvador | mostly mountains with narrow coastal belt and central plateau |
| belt | Puerto Rico | mostly mountains with coastal plain belt in north; mountains precipitous to sea on west coast; sandy beaches along most coastal areas |
| belt | Sierra Leone | coastal belt of mangrove swamps, wooded hill country, upland plateau, mountains in east |
| Ben | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| Beqaa | Lebanon | narrow coastal plain; El Beqaa (Bekaa Valley) separates Lebanon and Anti-Lebanon Mountains |
| Bering | Pacific Ocean | ... Pacific by a counterclockwise, cool-water gyre; in the northern Pacific, sea ice forms in the Bering Sea and Sea of Okhotsk in winter; in the southern Pacific, sea ice from Antarctica ... |
| better | Southern Ocean | ... minimum of 2.6 million sq km in March to about 18.8 million sq km in September, better than a sixfold increase in area; the Antarctic Circumpolar Current (21,000 km in length) moves ... |
| Big | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| bisected | Isle of Man | hills in north and south bisected by central valley |
| bisected | Kenya | low plains rise to central highlands bisected by Great Rift Valley; fertile plateau in west |
| bisected | Macedonia | mountainous territory covered with deep basins and valleys; three large lakes, each divided by a frontier line; country bisected by the Vardar River |
| Black | Georgia | ... north and Lesser Caucasus Mountains in the south; Kolkhet'is Dablobi (Kolkhida Lowland) opens to the Black Sea in the west; Mtkvari River Basin in the east; good soils in river valley ... |
| Black | Moldova | rolling steppe, gradual slope south to Black Sea |
| bleak | Heard Island and McDonald Islands | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky |
| boggy | Falkland Islands (Islas Malvinas) | rocky, hilly, mountainous with some boggy, undulating plains |
| Bohemia | Czech Republic | Bohemia in the west consists of rolling plains, hills, and plateaus surrounded by low mountains; Moravia in the east consists of very hilly country |
| border | Argentina | rich plains of the Pampas in northern half, flat to rolling plateau of Patagonia in south, rugged Andes along western border |
| border | Croatia | geographically diverse; flat plains along Hungarian border, low mountains and highlands near Adriatic coastline and islands |
| border | Hungary | mostly flat to rolling plains; hills and low mountains on the Slovakian border |
| border | Iraq | mostly broad plains; reedy marshes along Iranian border in south with large flooded areas; mountains along borders with Iran and Turkey |
| border | Poland | mostly flat plain; mountains along southern border |
| border | Russia | broad plain with low hills west of Urals; vast coniferous forest and tundra in Siberia; uplands and mountains along southern border regions |
| border | 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 |
| bordering | Morocco | northern coast and interior are mountainous with large areas of bordering plateaus, intermontane valleys, and rich coastal plains |
| borders | Gibraltar | a narrow coastal lowland borders the Rock of Gibraltar |
| borders | Iraq | mostly broad plains; reedy marshes along Iranian border in south with large flooded areas; mountains along borders with Iran and Turkey |