PARALLEL

Imaginary line round the Earth (8)

Solution has appeared in 2 crosswords (0 across and 2 down):

• Quick crossword No 16,080 — 2021-11-19 00:00:19
  13D: Duplicate — twin (8)
• Quick crossword No 15,231 — 2019-03-02 00:00:19
  12D: Imaginary line round the Earth (8)