ascent vs levitation

ascent and levitation both are nouns.

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

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

ascent: 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 ascent include heave, heaving, climb, mount, soar, zoom.

ascent (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
an upward slope or grade (as in a road)	the phenomenon of a person or thing rising into the air by apparently supernatural means