Turn it off.

Meaning: This means to ask someone to stop the operation of something by changing its position or direction. It's like saying, Please change the position or direction of that object to stop it from working.

Choice of Words: Turn means to change the position or direction of something. It refers to something that is already mentioned or understood. Off means to stop the operation of something. When you put them together, "Turn it off" means to stop the operation of something by changing its position or direction.

Alternative Expressions

Related Expressions