Not rotated, flipped, or changed direction; often used in the phrase 'leave no stone unturned' meaning to check everything thoroughly.
From Old English 'un-' (not) + 'turned' (past tense of turn). The 'no stone unturned' phrase dates back to ancient Greek stories about searching for treasure, symbolizing exhaustive effort.
The phrase 'leave no stone unturned' comes from a legend where a general overturned rocks looking for treasure after a battle, and now we use it whenever someone needs to search absolutely everywhere for something important.
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