ennead vs niner

ennead and niner both are nouns.

Word	Noun	Adjective	Verb	Adverb
ennead	Yes	No	No	No
niner	Yes	No	No	No

As nouns, ennead and niner are synonyms defined as:

Other synonyms of ennead include 9, IX, Nina from Carolina, nine.

ennead (noun)	niner (noun)
the cardinal number that is the sum of eight and one	the cardinal number that is the sum of eight and one