One billion years (4)
Crossword clue · 1 known answers · 1 appearances · Last seen in the The Sun crossword on August 27, 2025
Latest answer · Verified
AEON
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About this clue
The clue “One billion years (4)” 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 Sun crossword on August 27, 2025, where the answer was AEON.