Commonly confused

Shut up vs Shut down

Shut up” and “Shut down” look alike but pull in different directions. Here is the quick way to tell them apart — with examples, the mistake to avoid, and a check.

Which one do you mean?

Up means stop talking (blunt and often rude); down means stop a machine, system, or business.

Shut up

Stop talking — impolite; use “be quiet” politely.

Shut down

Turn off a machine, or close a business or system.

shut up

  1. 1

    Stop talking, often used as a rude command

Correct use

Shut up. I'm trying to think.

Stop talking. I'm trying to think.

Full meaning of shut up

shut down

  1. 1

    Stop operating completely

Correct use

They shut down the factory last year.

They permanently closed the factory last year.

Full meaning of shut down

Common mistake

Please shut up the computer before you leave.

Please shut down the computer before you leave.

To turn off a machine, use shut down.

RegisterShut up is rude as a command — say “be quiet” or “could you keep it down”.

Test yourself

Shut up. I'm trying to think. What does it mean?

Follow the pattern

Continue through the matching verb family and particle guides.

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Sink In turns confusable pairs like this into quick contrast drills, so the right particle becomes automatic instead of a guess.

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