square block vs dice

square block and dice both are nouns.

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

As nouns, dice is a hyponym of square block; that is, dice is a word with a more specific, narrower meaning than square block:

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

Other hyponyms of square block include die, ice cube.

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

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