open sesame

noun open ses·a·me \-ˈse-sə-mē\

: something that allows a person or thing to do or enter something successfully and easily

Full Definition of OPEN SESAME

: something that unfailingly brings about a desired end

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from open sesame, the magical command used by Ali Baba to open the door of the robbers' den in Ali Baba and the Forty Thieves

First Known Use: circa 1837

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