defenestration vs expulsion

defenestration and expulsion both are nouns.

Word	Noun	Adjective	Verb	Adverb
defenestration	Yes	No	No	No
expulsion	Yes	No	No	No

As nouns, expulsion is a hypernym of defenestration; that is, expulsion is a word with a broader meaning than defenestration:

Other hypernyms of defenestration include ejection, exclusion, riddance.

defenestration (noun)	expulsion (noun)
the act of throwing someone or something out of a window	the act of expelling or projecting or ejecting
	the act of forcing out someone or something
	squeezing out by applying pressure