Nouns denoting natural objects (not man-made)

a river that rises in northeastern Turkey (near the source of the Euphrates) and flows generally eastward through Armenia to the Caspian Sea; ancient name was Araxes
Bay of Biscay
an arm of the Atlantic Ocean in western Europe; bordered by the west coast of France and the north coast of Spain
North Sea
an arm of the North Atlantic between the British Isles and Scandinavia; oil was discovered under the North Sea in 1970
gopher hole
a hole in the ground made by gophers
the larger of the two satellites of Mars
Bay of Fundy
a bay of the North Atlantic between New Brunswick and Nova Scotia; noted for rapid tides as great as 70 feet
(mineralogy) a small rounded lump of mineral substance (usually harder than the surrounding rock or sediment)
(usually plural) a fragment scraped off of something and collected
Fountain of Youth
a fountain described in folk tales as able to make people young again
the ground on which people and animals move about
a constellation in the northern hemisphere near Pegasus and Aquila
North Channel
a strait between Northern Ireland and Scotland that connects the Atlantic Ocean and the Irish Sea
a low area where the land is saturated with water
a zodiacal constellation in the northern hemisphere near Orion; between Aries and Gemini
Nan River
a river of western Thailand flowing southward to join the Ping River to form the Chao Phraya
a relatively narrow strip of land (with water on both sides) connecting two larger land areas
Mount Logan
a mountain peak in the St. Elias Range in the southwestern Yukon Territory in Canada (19,850 feet high)
a slope down which sleds may coast
a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land
any broad thin expanse or surface
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