Serrure vs. cadenas
The French words 'serrure' and 'cadenas' both refer to devices used for securing something such as a door or a container. However, they are used in different contexts and refer to distinct types of locking mechanisms.
Serrure
A 'serrure' refers to the fixed lock mechanism typically found on doors, drawers, or other items that are built-in. It is an integral part of the structure it secures and usually requires a key to open or close.
J'ai perdu la clé de la serrure de ma porte d'entrée.
(I have lost the key to the lock on my front door.)
La serrure de ce tiroir est bloquée.
(The lock on this drawer is jammed.)
Il faut changer la serrure pour améliorer la sécurité de la maison.
(We need to change the lock to improve the house's security.)
Cadenas
A 'cadenas' refers to a portable or detachable lock with a shackle that can be passed through an opening such as a chain link, hasp, or staple to prevent use, theft, vandalism, or harm. It is typically opened with a key or combination.
Il a mis un cadenas sur son vélo pour éviter qu'il ne soit volé.
(He put a padlock on his bike to prevent it from being stolen.)
Le cadenas de cette valise est à combinaison.
(The padlock on this suitcase has a combination lock.)
Pour sécuriser l'échelle, utilise un cadenas et une chaîne.
(To secure the ladder, use a padlock and chain.)
Summary
While 'serrure' and 'cadenas' both mean lock in English, 'serrure' refers to a fixed built-in locking mechanism whereas 'cadenas' describes a portable or removable lock such as a padlock. Understanding the difference is important for proper usage in various contexts related to security and locking devices.