The definition of a mountain is a part of Earth that is very wide, has a taller height than a hill and often has steep sides, or it is a large pile of something.
(noun)See mountain in Webster's New World College Dictionary
noun
Origin: ME montaine < OFr montaigne < VL *montanea, for L montana < montanus, mountainous < mons: see mount
adjective
See mountain in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English mountaine
Origin: , from Old French montaigne, muntaigne
Origin: , from Vulgar Latin *montānea
Origin: , from feminine of *montāneus, of a mountain
Origin: , from Latin montānus
Origin: , from mōns, mont-, mountain; see men-2 in Indo-European roots
.Related Forms:
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