Definition of open sesame noun from the Oxford Advanced Learner's Dictionary


open sesame

BrE BrE//ˌəʊpən ˈsesəmi//
; NAmE NAmE//ˌoʊpən ˈsesəmi//
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an easy way to gain or achieve something that is usually very difficult to get Academic success is not always an open sesame to a well-paid job. From the fairy tale Ali Baba and the Forty Thieves, in which the magic words open sesame had to be said to open the cave where the thieves kept their treasure.
See the Oxford Advanced American Dictionary entry: open sesame