ˌ ̷ ̷ ̷ ̷ˈsesəmē, -mi noun
Usage: sometimes capitalized O
Etymology: from open sesame, the magical command used to open the door of the robbers' den by Ali Baba in the Arabian Nights tale of Ali Baba and the Forty Thieves
: something that unfailingly brings about a desired end
believe that education is for them … an open sesame to a good life — E.O.Melby