mountainside vs mount

mountainside and mount both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountainside	Yes	No	No	No
mount	Yes	No	Yes	No

mountainside (noun)	mount (noun)
the side or slope of a mountain	the act of climbing something
	a lightweight horse kept for riding only
	something forming a back that is added for strengthening
	a mounting consisting of a piece of metal (as in a ring or other jewelry) that holds a gem in place
	a land mass that projects well above its surroundings; higher than a hill

mountainside (verb)	mount (verb)
	go up or advance
	fix onto a backing, setting, or support
	attach to a support
	copulate with
	put up or launch
	prepare and supply with the necessary equipment for execution or performance
	go upward with gradual or continuous progress
	get up on the back of