sixer vs sextuplet

sixer and sextuplet both are nouns.

Word	Noun	Adjective	Verb	Adverb
sixer	Yes	No	No	No
sextuplet	Yes	No	No	No

As nouns, sixer and sextuplet are synonyms defined as:

sixer and sextuplet: the cardinal number that is the sum of five and one

Other synonyms of sixer include 6, Captain Hicks, half a dozen, hexad, sestet, sextet, sise, six, VI.

sixer (noun)	sextuplet (noun)
the cardinal number that is the sum of five and one	the cardinal number that is the sum of five and one