leave on: Idiom Meaning and Origin

What does ‘leave on’ mean?

The idiom "leave on" means to intentionally keep something activated, running, or operating, especially when it should be turned off or stopped.

Idiom Explorer

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The idiom "leave on" is a commonly used phrase in English that has several different meanings depending on the context. One interpretation of "leave on" is to intentionally keep something switched on or in operation. This can refer to leaving a light switch on, leaving a device running, or neglecting to turn off a piece of machinery.

Another meaning of "leave on" is to depart from a place while leaving something or someone behind. This can imply abandoning or separating from someone or leaving an item without taking it along.

Additionally, "leave on" can also describe leaving a garment or accessory on one's person. It may be intentional or accidental, but it signifies not removing the item in question.

Furthermore, "leave on" can have a figurative meaning, representing the continuation or persistence of a certain situation or state. It suggests allowing something to remain unchanged without interference or intervention.

Leave before you forget to abandon.

The related idiom "leave off" is used to indicate the act of stopping or ceasing an activity or action. It is the opposite of "leave on" and implies the act of turning off or stopping something that was previously left on. For example, if you leave the lights on in a room and then leave, you would need to remember to "leave off" the lights when you exit.

The phrase "leave it be" conveys the idea of allowing something to remain as it is without meddling or interfering. It suggests a hands-off approach, leaving something untouched or unchanged. It is similar to the figurative meaning of "leave on" in which you allow a situation to continue without intervention.

Another related idiom, "jog on," is an informal way of telling someone to leave or go away. It is often used in a dismissive or slightly rude manner to indicate that someone should leave a particular area or situation. It is different from "leave on" in that it suggests a more deliberate action of physically departing.

The expression "keep on" means to continue or persist in doing something. It implies an ongoing action or behavior without interruption. It is similar to the figurative meaning of "leave on" in that both suggest allowing something to continue without interference. However, "keep on" specifically emphasizes the act of continuing a specific action or behavior.

Lastly, the idiom "keep the show on the road" means to keep a situation or activity going smoothly or successfully. It implies the need to maintain momentum and progress without interruptions or setbacks. It is similar to the figurative meaning of "leave on" in that it emphasizes the importance of allowing something to continue without interruptions.

The idiom "leave on" is a versatile phrase with multiple meanings. It can refer to keeping something switched on, departing from a place while leaving something behind, leaving a garment on, or allowing a situation to continue. The etymology of this idiom is not easily determined, as it arises from the common usage of the words "leave" and "on." Its flexibility and wide application in various contexts make it a commonly used and understood phrase in the English language.

Example usage

Examples of how the idiom "leave on" can be used in a sentence:

  • Please don't forget to leave on the lights when you leave the room.
  • You shouldn't leave the stove on when you're not using it.
  • He accidentally left his car's headlights on all night and drained the battery.

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