French Phrase
Oui, toutes les lumières sont éteintes.
Meaning
Literally, "Yes, all the lights are turned off." It confirms that every light source in the area is currently off.
When to use
Use this sentence after someone asks whether the lights are on, when you are checking a room, house, office, or any space with multiple light sources, or when you want to reassure someone that the place is dark.
✦Grammar Breakdown
Ouitoutesleslumièressontéteintes
Oui (affirmation)
Used to answer positively to a yes/no question.
toutes les + noun (plural definite article)
"toutes les" means "all the" and must agree in gender and number with the noun that follows.
lumières (feminine plural noun)
The word for "lights"; it is feminine, so adjectives must be in the feminine plural form.
être (sont) + past participle as adjective
"sont" is the third‑person plural present of "être"; the past participle "éteintes" agrees in gender and number with "lumières".
🗨In Conversation
Est‑ce que les lumières sont allumées ?
Are the lights on?
Oui, toutes les lumières sont éteintes.
Yes, all the lights are turned off.
✕Common Mistakes
Oui, tout les lumières sont éteintes.
The adjective must agree in gender and number; use "toutes les" for feminine plural nouns.
Oui, toutes les lumières sont éteint.
The past participle must agree with "lumières" (feminine plural).
Oui, toutes les lumières sont éteinte.
When the subject is plural, the adjective must be plural as well.
↔Alternatives
Oui, toutes les lampes sont éteintes.
Yes, all the lamps are turned off.
Oui, il n’y a plus de lumière.
Yes, there is no light left.
Oui, tout est dans le noir.
Yes, everything is in the dark.
Cultural Tip
In French, "éteindre" is the verb used for turning lights off, while "allumer" is used for turning them on. When you want to stress that *every* light is off, "toutes les lumières" is the natural phrasing. Be careful with agreement: "toutes les" (feminine plural) matches "lumières"; saying "tout les lumières" is a common mistake.