quick fix vs fixing

quick fix and fixing both are nouns.

Word	Noun	Adjective	Verb	Adverb
quick fix	Yes	No	No	No
fixing	Yes	No	No	No

As nouns, fixing is a hypernym of quick fix; that is, fixing is a word with a broader meaning than quick fix:

Other hypernyms of quick fix include fix, fixture, mend, mending, repair, reparation.

quick fix (noun)	fixing (noun)
hurried repair	the act of putting something in working order again
	the sterilization of an animal
	(histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body
	restraint that attaches to something or holds something in place