raising vs ascension

raising and ascension both are nouns.

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

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

Other hypernyms of raising include ascent, rise, rising.

raising (noun)	ascension (noun)
helping someone grow up to be an accepted member of the community	the act of changing location in an upward direction
the properties acquired as a consequence of the way you were treated as a child	a movement upward; rise above the ground
the event of something being raised upward	(astronomy) the rising of a star above the horizon

raising (adjective)	ascension (adjective)
increasing in quantity or value