der Schlüssel
Translation
key, clue, wrench, code
Examples
Ich habe meinen Schlüssel verloren.
I have lost my key.
Das ist der Schlüssel zum Erfolg.
This is the key to success.
Gib mir bitte den Schraubenschlüssel.
Please give me the wrench.
Grammar Patterns
the key to sth. This is the key to success.
Similar Words
Synonyms: Dietrich (lockpick); Antonyms: Schloss (lock)
Etymology
From Old High German 'sluzzil', related to 'schließen' (to close/lock).
Memory Tips
Think of a 'Schlüssel' as something that 'schließt' (locks) a 'Schloss' (lock).