open sesame
The magic phrase from the Ali Baba story, used to open a door or barrier. In Japanese, it is a noun referring to the phrase itself or metaphorically to a key that unlocks something.
Ali Baba said 'Open Sesame' and opened the cave door.
This password is like an open sesame.
From the English phrase 'open sesame', popularized by the story of Ali Baba and the Forty Thieves.