hair clip vs fixing

hair clip and fixing both are nouns.

Word	Noun	Adjective	Verb	Adverb
hair clip	Yes	No	No	No
fixing	Yes	No	No	No

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

Other hypernyms of hair clip include fastener, fastening, holdfast.

hair clip (noun)	fixing (noun)
any of various clasps and clips used for holding hair in place.	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