ascension vs levitation

ascension and levitation both are nouns.

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

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

ascension: the act of changing location in an upward direction
levitation: the act of raising (a body) from the ground by presumably spiritualistic means

Other hyponyms of ascension include heave, heaving, climb, mount, soar, zoom.

ascension (noun)	levitation (noun)
the act of changing location in an upward direction	the act of raising (a body) from the ground by presumably spiritualistic means
a movement upward; rise above the ground	movement upward in virtue of lightness
(astronomy) the rising of a star above the horizon	the phenomenon of a person or thing rising into the air by apparently supernatural means