AQUA

Light bluish-green — water (4)

Solution has appeared in 4 crosswords (3 across and 1 down):

• Quick crossword No 16,721 — 2023-12-08 00:00:35
  5A: Roman bath essential? (4)
• Quick crossword No 16,060 — 2021-10-26 23:00:15
  19A: Pale blue colour (4)
• Quick crossword No 16,034 — 2021-09-26 23:00:24
  18A: Greenish-blue colour (4)
• Quick crossword No 15,380 — 2019-08-22 23:00:55
  22D: Light bluish-green — water (4)