"Pass' partout" is a French phrase that translates to "master key" in English. It refers to a key that can open several locks, or a solution that solves multiple problems. Synonyms for "pass' partout" include: universal solution, panacea, cure-all, fix-all, magic bullet, one-stop-shop, silver bullet, and Swiss Army knife. These phrases describe something that provides a quick and easy solution to a wide range of issues or challenges. A "pass' partout" can be a valuable tool in various fields, from technology to medicine to personal development, making it a useful term to know and understand.