inbreeding vs pairing

inbreeding and pairing both are nouns.

Word	Noun	Adjective	Verb	Adverb
inbreeding	Yes	No	No	No
pairing	Yes	No	No	No

As nouns, pairing is a hypernym of inbreeding; that is, pairing is a word with a broader meaning than inbreeding:

Other hypernyms of inbreeding include conjugation, coupling, mating, sexual union, union.

inbreeding (noun)	pairing (noun)
the act of mating closely related individuals	the act of pairing a male and female for reproductive purposes
	the act of grouping things or people in pairs