quin vs quintuplet

quin and quintuplet both are nouns.

Word	Noun	Adjective	Verb	Adverb
quin	Yes	No	No	No
quintuplet	Yes	No	No	No

As nouns, quin and quintuplet are synonyms defined as:

quin and quintuplet: one of five children born at the same time from the same pregnancy

Other synonyms of quin include quint.

quin (noun)	quintuplet (noun)
one of five children born at the same time from the same pregnancy	a set of five similar things considered as a unit
	one of five children born at the same time from the same pregnancy
	the cardinal number that is the sum of four and one