2 vs snake eyes

2 and snake eyes both are nouns.

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

As nouns, snake eyes is a hyponym of 2; that is, snake eyes is a word with a more specific, narrower meaning than 2:

2: 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 2 include craps, brace, couple, couplet, distich, duad, duet, duo, dyad, pair, span, twain, twosome, yoke.

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

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