climb vs ascension

climb and ascension both are nouns.

Word	Noun	Adjective	Verb	Adverb
climb	Yes	No	Yes	No
ascension	Yes	No	No	No

As nouns, ascension is a hypernym of climb; that is, ascension is a word with a broader meaning than climb:

Other hypernyms of climb include ascending, ascent, rise.

As nouns, ascension is a hypernym of climb; that is, ascension is a word with a broader meaning than climb:

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

Other hypernyms of climb include ascent, rise, rising.

climb (noun)	ascension (noun)
the act of climbing something	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)	(astronomy) the rising of a star above the horizon

climb (verb)	ascension (verb)
go up or advance
increase in value or to a higher point
improve one's social status
go upward with gradual or continuous progress
move with effort, by grasping
slope upward