detonating fuse vs primer

detonating fuse and primer both are nouns.

Word	Noun	Adjective	Verb	Adverb
detonating fuse	Yes	No	No	No
primer	Yes	No	No	No

As nouns, primer is a hypernym of detonating fuse; that is, primer is a word with a broader meaning than detonating fuse:

Other hypernyms of detonating fuse include fuse, fusee, fuze, fuzee, priming.

detonating fuse (noun)	primer (noun)
a fuse containing an explosive	any igniter that is used to initiate the burning of a propellant
	the first or preliminary coat of paint or size applied to a surface
	an introductory textbook