wad vs mountain

wad and mountain both are nouns.

Word	Noun	Adjective	Verb	Adverb
wad	Yes	No	Yes	No
mountain	Yes	No	No	No

As nouns, wad and mountain are synonyms defined as:

wad and mountain: (often followed by `of') a large number or amount or extent

wad (noun)	mountain (noun)
a wad of something chewable as tobacco	a land mass that projects well above its surroundings; higher than a hill
(often followed by `of') a large number or amount or extent	(often followed by `of') a large number or amount or extent
a small mass of soft material

wad (verb)	mountain (verb)
crowd or pack to capacity
compress into a wad