CUBE

Regular hexahedron (4)

Solution has appeared in 3 crosswords (1 across and 2 down):

• Quick crossword No 15,932 — 2021-05-30 23:00:07
  8A: Block of ice (4)
• Quick crossword No 15,530 — 2020-02-15 00:00:45
  2D: Raise to the third power (4)
• Quick crossword No 15,221 — 2019-02-19 00:00:54
  18D: Regular hexahedron (4)