quintet vs digit

quintet and digit both are nouns.

Word	Noun	Adjective	Verb	Adverb
quintet	Yes	No	No	No
digit	Yes	No	No	No

As nouns, digit is a hypernym of quintet; that is, digit is a word with a broader meaning than quintet:

Other hypernyms of quintet include figure.

quintet (noun)	digit (noun)
a musical composition for five performers	a finger or toe in human beings or corresponding body part in other vertebrates
five people considered as a unit	one of the elements that collectively form a system of numeration
a set of five similar things considered as a unit	the length of breadth of a finger used as a linear measure
five performers or singers who perform together
the cardinal number that is the sum of four and one