two vs snake eyes

two and snake eyes both are nouns.

Word	Noun	Adjective	Verb	Adverb
two	Yes	Yes	No	No
snake eyes	Yes	No	No	No

As nouns, snake eyes is a hyponym of two; that is, snake eyes is a word with a more specific, narrower meaning than two:

two: the cardinal number that is the sum of one and one or a numeral representing this number
snake eyes: expressions used when two dice are thrown and both come up showing one spot

Other hyponyms of two include craps, brace, couple, couplet, distich, duad, duet, duo, dyad, pair, span, twain, twosome, yoke.

two (noun)	snake eyes (noun)
one of the four playing cards in a deck that have two spots	expressions used when two dice are thrown and both come up showing one spot
the cardinal number that is the sum of one and one or a numeral representing this number

two (adjective)	snake eyes (adjective)
being one more than one