French · Daily Life
key
A small metal instrument used to open a lock.
J'ai perdu ma cle de voiture.
I lost my car key.
'Clé' comes from the Latin 'clavis', meaning a key or latch, and has retained a similar form throughout its history in various Romance languages.
'Clé' is used both formally and informally, in spoken and written contexts, to refer to literal keys or metaphorical keys (such as solutions or answers).