ascension vs elevation

ascension and elevation both are nouns.

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

As nouns, elevation is a hyponym of ascension; that is, elevation is a word with a more specific, narrower meaning than ascension:

ascension (noun)	elevation (noun)
the act of changing location in an upward direction	the act of increasing the wealth or prestige or power or scope of something
a movement upward; rise above the ground	drawing of an exterior of a structure
(astronomy) the rising of a star above the horizon	distance of something above a reference point (such as sea level)
	(ballet) the height of a dancer's leap or jump
	the event of something being raised upward
	a raised or elevated geological formation
	angular distance above the horizon (especially of a celestial object)
	the highest level or degree attainable; the highest stage of development