What Does “Turn sth on” Mean?
“Turn sth on” means to activate or switch on a device or machine, making it start working.
Introduction
The phrasal verb “turn sth on” is commonly used in everyday English. It refers to the action of starting or activating something, usually an electronic device or machine. Understanding the “turn sth on” meaning helps learners use it correctly in various situations. Whether you want to start a computer, TV, or even a light, this phrase is very useful. It is simple but important for clear communication in daily life.
Quick Info Box
- Phrasal verb: turn something on
- Type: transitive
- Level: A1 (Beginner)
- Short meaning: to start or activate a device or machine
Structure (Grammar Rules)
“Turn sth on” is a separable phrasal verb. This means you can place the object (something) between “turn” and “on,” or after “on.”
- turn + something + on (correct)
- turn on + something (correct)
- turn on (without object) – incorrect here because the verb is transitive and needs an object
Example: “Turn the light on” or “Turn on the light” are both correct.
How to Use Turn sth on?
Use “turn sth on” when you want to say someone starts using a machine, device, or equipment. It is often used with electronics like lights, TVs, computers, radios, and more. The phrase can also be used in informal contexts with other meanings, but the main and most common use is about activating devices.
Examples
Here are some natural sentences using “turn sth on”:
- Can you turn the TV on? I want to watch the news.
- He turned the computer on before starting his work.
- Don’t forget to turn the heater on; it’s cold outside.
- She turned on the radio to listen to her favorite music.
- Turn the lights on when you enter the room.
These examples show how to use “turn sth on” in a sentence clearly and naturally.
Common Mistakes
Sometimes learners forget that “turn sth on” needs an object or use the phrase incorrectly.
- Incorrect: Please turn on.
- Correct: Please turn the fan on.
- Incorrect: Turn on it.
- Correct: Turn it on.
Remember, the object can go between “turn” and “on” or after “on,” but it cannot be left out.
Differences / Synonyms
“Turn sth on” is similar to “switch sth on” or “power sth on.” All mean to activate a device, but “turn on” is more common in everyday speech.
- Turn sth on: casual and widely used
- Switch sth on: slightly more formal, often used with lights or switches
- Power sth on: more technical, often for computers or machines
Choose based on context, but they all mean to start a device.
Common Collocations
You often hear “turn sth on” with common objects related to electronics and machines:
- turn the light on – to activate a light source
- turn the TV on – to start watching television
- turn the computer on – to start a computer
- turn the radio on – to listen to the radio
- turn the heater on – to start heating
Related Phrasal Verbs
Here are related phrasal verbs of turn sth on:
Real-life Dialogue
Here is a short conversation using “turn sth on”:
Anna: It’s dark in here. Can you turn the light on?
Ben: Sure, I’ll turn it on now.
Anna: Thanks! Also, can you turn the TV on? The game is about to start.
Ben: No problem. Turning it on!
Practice
Fill in the blanks with the correct form of “turn sth on”:
- Please ________ the heater ________. It’s cold.
- Can you ________ the computer ________ before the meeting?
- She forgot to ________ the lights ________ when she entered the room.
Answers: turn the heater on, turn the computer on, turn on the lights
FAQ
- What does “turn sth on” mean? It means to start or activate a device or machine.
- Can I say “turn on” without an object? Usually no, because “turn sth on” is transitive and needs an object.
- Is “turn sth on” formal or informal? It is neutral and used in both formal and informal contexts.
- What is the difference between “turn on” and “switch on”? They mean the same, but “switch on” is slightly more formal.
- Can “turn on” be used for feelings? Yes, but that is a different meaning, usually informal.
