[open ses.a.me] n [fr. open sesame, the magical command used by Ali Baba to open the door of the robbers' den in Ali Baba and the Forty Thieves] (ca. 1837): something that unfailingly brings about a desired end
OPEN SESAME
Meaning of OPEN SESAME in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012