Molar
Steep mound with a flat summit and small dimensions.
Knoll
Small and long height.
Solid
Group of heights or mountains.
Marsh
Low, swampy land flooded by sea water.
islet
Very small island.
Coast
Region that is located near the sea and receives its influence.
Flat
Equal and extensive field or terrain, without highs or lows.
Big city
A group of buildings and streets, governed by a town council, whose dense and numerous population is usually engaged in non-agricultural activities.
pit
Concavity, depression or hollow in the ground, sometimes of glacial origin.
Sickle
Narrowness of a deep valley.