ejection vs actuation

ejection and actuation both are nouns.

Word	Noun	Adjective	Verb	Adverb
ejection	Yes	No	No	No
actuation	Yes	No	No	No

As nouns, actuation is a hypernym of ejection; that is, actuation is a word with a broader meaning than ejection:

Other hypernyms of ejection include propulsion.

ejection (noun)	actuation (noun)
the act of forcing out someone or something	the act of propelling
the act of expelling or projecting or ejecting