nine vs nine-spot

nine and nine-spot both are nouns.

Word	Noun	Adjective	Verb	Adverb
nine	Yes	Yes	No	No
nine-spot	Yes	No	No	No

As nouns, nine and nine-spot are synonyms defined as:

nine and nine-spot: one of four playing cards in a deck with nine pips on the face

nine (noun)	nine-spot (noun)
one of four playing cards in a deck with nine pips on the face	one of four playing cards in a deck with nine pips on the face
a team of professional baseball players who play and travel together
the cardinal number that is the sum of eight and one

nine (adjective)	nine-spot (adjective)
denoting a quantity consisting of one more than eight and one less than ten