Die shape (4)

I believe the answer is:
cube
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">die shape</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cube that I've seen before include "perhaps twenty-seven" , "Hexahedron with six plane faces" , "Three-dimensional shape with six sides" , "Raise to the third power" , "Regular three dimensional figure" .)