Dice (4)
I believe the answer is:
cube
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dice</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cube that I've seen before include "1, 8, 27 or 64?" , "Three-dimensional figure" , "Square-faced solid" , "nine?" , "Regular three dimensional figure" .)