sixer vs Captain Hicks

sixer and Captain Hicks both are nouns.

Word	Noun	Adjective	Verb	Adverb
sixer	Yes	No	No	No
Captain Hicks	Yes	No	No	No

As nouns, sixer and Captain Hicks are synonyms defined as:

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

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

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