dice vs square block

dice and square block both are nouns.

Word	Noun	Adjective	Verb	Adverb
dice	Yes	No	Yes	No
square block	Yes	No	No	No

As nouns, square block is a hypernym of dice; that is, square block is a word with a broader meaning than dice:

dice: a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers
square block: a block in the (approximate) shape of a cube

Other hypernyms of dice include cube.

dice (noun)	square block (noun)
a small cube with 1 to 6 spots on the six faces; used in gambling to generate random numbers	a block in the (approximate) shape of a cube

dice (verb)	square block (verb)
play dice
cut into cubes