German · Daily Life
Key
A metal instrument for operating a lock.
Ich finde meinen Schlüssel nicht.
I can't find my key.
'Schlüssel' comes from the Middle High German 'schluessel', which is from the Old High German 'slüzel', referring to an object that opens locks. This term has remained crucial in the context of security.
'Schlüssel' is commonly used in spoken and written contexts, formal and informal alike. It is understood throughout German-speaking areas in everyday conversation about locks and keys.