Lights off.
Meaning: This means to turn off the lights. It's like saying, Switch off the lights so the room will be dark.
Choice of Words: Lights are devices that produce light, such as lamps or bulbs. Off is an adjective that means not operating or not functioning. In this case, "Lights off" is a phrase used to indicate that the lights should be turned off or are not in use.
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Related Expressions