installing vs commencement

installing and commencement both are nouns.

Word	Noun	Adjective	Verb	Adverb
installing	Yes	No	No	No
commencement	Yes	No	No	No

As nouns, commencement is a hypernym of installing; that is, commencement is a word with a broader meaning than installing:

Other hypernyms of installing include beginning, start.

installing (noun)	commencement (noun)
the act of installing something (as equipment)	the act of starting something
	an academic exercise in which diplomas are conferred
	the time at which something is supposed to begin