domestication vs fitting

domestication and fitting both are nouns.

Word	Noun	Adjective	Verb	Adverb
domestication	Yes	No	No	No
fitting	Yes	Yes	No	No

As nouns, fitting is a hypernym of domestication; that is, fitting is a word with a broader meaning than domestication:

Other hypernyms of domestication include accommodation, adjustment.

domestication (noun)	fitting (noun)
accommodation to domestic life	putting clothes on to see whether they fit
the attribute of having been domesticated	a small and often standardized accessory to a larger system
adaptation to intimate association with human beings	(usually in the plural) furnishings and equipment (especially for a ship or hotel)
	making or becoming suitable; adjusting to circumstances

domestication (adjective)	fitting (adjective)
	being precisely fitting and right
	in harmony with the spirit of particular persons or occasion