quintuplet vs five

quintuplet and five both are nouns.

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

As nouns, quintuplet and five are synonyms defined as:

quintuplet and five: the cardinal number that is the sum of four and one

Other synonyms of quintuplet include 5, cinque, fin, fivesome, Little Phoebe, pentad, Phoebe, quint, quintet, V.

quintuplet (noun)	five (noun)
a set of five similar things considered as a unit	a playing card or a domino or a die whose upward face shows five pips
one of five children born at the same time from the same pregnancy	a team that plays basketball
the cardinal number that is the sum of four and one	the cardinal number that is the sum of four and one

quintuplet (adjective)	five (adjective)
	being one more than four