key role
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key role
A decisive, central, or very important function or position in a particular context, process, or system.
Die Zeugenaussage spielte im Prozess eine Schlüsselrolle.
The witness statement played a key role in the trial.
The word consists of 'Schlüssel' (key) and 'Rolle' (role). Here, 'Schlüssel' (key) metaphorically stands for something that enables access to a solution or success. A 'Schlüsselrolle' (key role) is therefore a role that is decisive for success.
Die richtige Ernährung ist der Schlüssel zu guter Gesundheit.
The right diet is the key to good health.
The element 'Schlüssel-' (key) is used in many words to mark central importance. If you recognize this pattern, you will also understand words like 'Schlüsselfigur' (key figure/most important person), 'Schlüsselmoment' (key moment/decisive moment), or 'Schlüsseltechnologie' (key technology).
Die Entdeckung des Penicillins war ein Schlüsselmoment in der Medizingeschichte.
The discovery of penicillin was a key moment in the history of medicine.
The most common and important collocation is 'eine Schlüsselrolle spielen' (to play a key role). Other typical verbs are 'eine Schlüsselrolle einnehmen' (to occupy/take on a key role) or 'eine Schlüsselrolle haben' (to have a key role).
Die Digitalisierung spielt in der modernen Wirtschaft eine Schlüsselrolle.
Digitalization plays a key role in the modern economy.
leading role
Hauptrolle and Schlüsselrolle both refer to a very important contribution. Hauptrolle emphasizes that someone or something is at the center of attention. Schlüsselrolle, by contrast, emphasizes a decisive function in the course or success of something. Hauptrolle fits a central person, while Schlüsselrolle is more suitable for a decisive factor.
Bei der Lösung des entscheidenden Problems spielte ihre Erfahrung eine Schlüsselrolle.
Her experience played a key role in solving the critical problem.
Bei der Organisation des Projekts spielte die erfahrene Teamleiterin die Hauptrolle.
The experienced team leader played the leading role in organizing the project.
