IdiomThe AbsurdEnglish

Ariadne's thread

Meaning: Something that guides one through a complicated problem.

Example: “The old diaries were the Ariadne's thread that led historians through the family's past.”

Origin: In Greek myth, Ariadne gave Theseus a ball of thread to unwind as he entered the Labyrinth, so he could find his way out after killing the Minotaur.

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