insular

 

island

 

peninsula

 

islet

 

marine

 

maritime

 

moist

 

ledge

 

oasis

 

tide

 

ebb

 

continent

 

terrestrial

 

outskirt

 

region

 

endemic

 

cosmopolitan

 

subterrane

 

subterranean

 

cavern

 

flaw

 

cleft

 

crevice

 

gap

 

zone

 

equator

 

longitude

 

altitude

 

latitude

 

meridian

 

subsidiary

 

Antarctic

 

Antarctica

 

Arctic

 

coastland

 

hemisphere

 

contour

 

geography

 

horizon

 

lowland

 

plain

 

strait

 

channel

 

valley

 

volcano

 

plateau

 

basin

 

navigation

 

ranges

 

salinity

 

sediment

 

elevation

 

formation

 

geothermy

 

terrain

 

topography

 

tropical

 

tropics

 

temperate