mounting vs ascent

mounting and ascent both are nouns.

Word	Noun	Adjective	Verb	Adverb
mounting	Yes	No	No	No
ascent	Yes	No	No	No

As nouns, ascent is a hypernym of mounting; that is, ascent is a word with a broader meaning than mounting:

mounting: an event that involves rising to a higher point (as in altitude or temperature or intensity etc.)
ascent: a movement upward; rise above the ground

Other hypernyms of mounting include ascension, rise, rising.

mounting (noun)	ascent (noun)
framework used for support or display	the act of changing location in an upward direction
an event that involves rising to a higher point (as in altitude or temperature or intensity etc.)	a movement upward; rise above the ground
	an upward slope or grade (as in a road)