Extremely advanced operating system is so long (5)
Crossword clue · 1 known answers · 1 appearances · Last seen in the The Guardian crossword on September 13, 2026
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ADIOS
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About this clue
The clue “Extremely advanced operating system is so long (5)” has appeared 1 times in our database with 1 different answers, so count the squares in your grid and check the crossings before you commit. Most recently it ran in the The Guardian crossword on September 13, 2026, where the answer was ADIOS.
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