sameness vs quality

sameness and quality both are nouns.

Word	Noun	Adjective	Verb	Adverb
sameness	Yes	No	No	No
quality	Yes	Yes	No	No

As nouns, quality is a hypernym of sameness; that is, quality is a word with a broader meaning than sameness:

sameness (noun)	quality (noun)
the quality of being alike	an essential and distinguishing attribute of something or someone
the quality of wearisome constancy, routine, and lack of variety	(music) the distinctive property of a complex sound (a voice or noise or musical sound)
	a degree or grade of excellence or worth
	a characteristic property that defines the apparent individual nature of something
	high social status

sameness (adjective)	quality (adjective)
	of superior grade
	of high social status