ascension vs ascent

ascension and ascent both are nouns.

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

As nouns, ascension and ascent are synonyms defined as:

ascension and ascent: the act of changing location in an upward direction

Other synonyms of ascension include ascending, rise.

As nouns, ascension and ascent are synonyms defined as:

Other synonyms of ascension include rise, rising.

ascension (noun)	ascent (noun)
the act of changing location in an upward direction	the act of changing location in an upward direction
a movement upward; rise above the ground	a movement upward; rise above the ground
(astronomy) the rising of a star above the horizon	an upward slope or grade (as in a road)