mirror
The French word for 'mirror' is 'miroir'. It is a masculine noun in French, generally used in the same context as the English word. For example, 'Il y a un miroir dans la salle de bain' means 'There is a mirror in the bathroom'.
The mirror reflects light.
This phrase translates directly to English. It uses 'miroir' within a clause where it stands as the subject of the sentence. The verb 'reflects' corresponds to the French 'reflète'.
She is looking at herself in the mirror.
In this phrase, 'miroir' is used in a prepositional phrase that describes where the action is being done. The reflexive pronoun 'se' is used together with 'regarde' indicating a reflexive form of the verb 'to watch' or 'to look'.
The mirror is broken.
This phrase translates directly, with 'miroir' being the subject of the sentence and 'est brisé' translating to 'is broken'. It can also be interpreted to imply that a state of something has changed, not just the physical state of the mirror.