fulminate vs set off

fulminate is a noun but set off is not a noun.

Word	Noun	Adjective	Verb	Adverb
fulminate	Yes	No	Yes	No
set off	No	No	Yes	No

As verbs, set off is a hypernym of fulminate; that is, set off is a word with a broader meaning than fulminate:

Other hypernyms of fulminate include blow up, detonate, explode.

fulminate (noun)	set off (noun)
a salt or ester of fulminic acid

fulminate (verb)	set off (verb)
cause to explode violently and with loud noise	cause to burst with a violent release of energy
come on suddenly and intensely	set in motion or cause to begin
criticize severely	direct attention to, as if by means of contrast
	provoke or stir up
	put in motion or move to act
	depart for someplace
	make up for