OCTAGON

Eight-sided figure (7)

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

• Quick crossword No 16,170 — 2022-03-05 00:00:08
  2D: Figure with eight sides (7)
• Quick crossword No 15,719 — 2020-09-22 23:00:09
  23A: Eight-sided figure (7)