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in the PONS Dictionary

I. cléNO [kle], clefOT N f

1. clé (instrument pour ouvrir):

fermer à clé personne:
fermer à clé porte, meuble:

2. clé:

3. clé (moyen d'accéder à, de connaître):

clé d'une énigme

4. clé MUS:

5. clé SPORTS:

6. clé COMPUT:

Phrases:

II. cléNO [kle], clefOT APPO

III. cléNO [kle], clefOT (atelier, magasin)

IV. cléNO [kle], clefOT

V. cléNO [kle], clefOT

clé de voute (voûte) ARCHIT
OpenDict entry

clé (clef) N

clé de voute (clef de voûte) f fig
clé de voute (clef de voûte) f fig