master key

A key that opens several different locks, each of which also has its own individual key; often used metaphorically to describe a solution or resource that provides access to many things.

ruКлюч, который открывает несколько разных замков, каждый из которых также имеет свой собственный ключ; часто используется метафорически для описания решения или ресурса, который предоставляет доступ ко многим вещам.esLlave que abre varios cerrojos diferentes, cada uno de los cuales también tiene su propia llave; se usa a menudo en sentido metafórico para referirse a una solución o recurso que proporciona acceso a muchas cosas.frClé qui ouvre plusieurs serrures différentes, chacune ayant également sa propre clé ; souvent utilisé de manière métaphorique pour décrire une solution ou une ressource qui donne accès à de nombreuses choses.deEin Schlüssel, der mehrere verschiedene Schlösser öffnet, die jeweils auch einen eigenen Schlüssel haben; wird oft metaphorisch für eine Lösung oder Ressource verwendet, die Zugang zu vielen Dingen verschafft.ptChave que abre várias fechaduras diferentes, cada uma das quais também tem sua própria chave; frequentemente usada metaforicamente para descrever uma solução ou recurso que dá acesso a muitas coisas.zh能打开多个不同锁的钥匙，每把锁通常也有自己的钥匙；常比喻能获得多种资源或解决问题的通用手段。arمفتاح واحد يفتح عدة أقفال مختلفة، لكل منها مفتاح خاص بها؛ ويُستعمل مجازاً للدلالة على وسيلة أو مورد يمنح الوصول إلى أشياء كثيرة.

1. Universal key B1 formal

   A key that opens many different locks, typically within a system where each lock also has its own individual key.

   • The janitor used a master key to open all the classroom doors.
   • Only the manager has the master key to the building.
   • The master key system allows access to restricted areas.

   ruУниверсальный ключesllave maestrafrpasse-partoutdeUniversalschlüsselptChave mestrazh万能钥匙arمفتاح رئيسي

2. Metaphorical solution B2 informal

   Something that provides a solution to many problems or gives access to many things.

   • Education is often called the master key to success.
   • Patience is the master key to resolving conflicts.
   • This software is the master key to unlocking all the data.

   ruУниверсальное решениеesLlave maestra (sentido figurado)frPasse-partout (sens figuré)deUniversallösungptSolução universalzh万能钥匙arالحل الشامل