Definition of open sesame
: something that unfailingly brings about a desired end
Examples of open sesame in a sentence
Perfect test scores are an open sesame to the best schools.
<it turned out that a simple “please” was the open sesame for charming the hotel manager into giving us a room with a better view>
Origin and Etymology of open sesame
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: 1814
OPEN SESAME Defined for English Language Learners
Definition of open sesame for English Language Learners
: something that allows a person or thing to do or enter something successfully and easily
Learn More about open sesame
Thesaurus: All synonyms and antonyms for open sesame
Seen and Heard
What made you want to look up open sesame? Please tell us where you read or heard it (including the quote, if possible).