six-spot vs dice

six-spot and dice both are nouns.

Word	Noun	Adjective	Verb	Adverb
six-spot	Yes	No	No	No
dice	Yes	No	Yes	No

As nouns, dice is a hypernym of six-spot; that is, dice is a word with a broader meaning than six-spot:

six-spot: a playing card or domino or die whose upward face shows six pips
dice: a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers

Other hypernyms of six-spot include die, domino, spot.

six-spot (noun)	dice (noun)
a playing card or domino or die whose upward face shows six pips	a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers

six-spot (verb)	dice (verb)
	play dice
	cut into cubes