Knock it off vs Stop it

When to use each in English, with meaning, register, and examples.

Knock it off

InformalTop 3,000 (common)

Stop it

InformalTop 1,000 (very common)
Most common: Stop it
 Knock it offStop it
Pronunciation🇬🇧 //nɒk ɪt ɒf//🇺🇸 //nɑk ɪt ɔf//🇬🇧 //stɒp ɪt//🇺🇸 //stɑp ɪt//
MeaningStop doing something annoyingTo tell someone to cease their actions.
ExampleCan you just knock it off with the loud music?If you keep making that noise, I will have to say, 'Stop it!'
RegisterInformalInformal
How commonTop 3,000 (common)Top 1,000 (very common)
Collocationsknock it off with the jokes, knock it off right now, please knock it offjust stop it, please stop it, stop it right now
Antonymscontinue, persist-
Common mistakesUsing it in formal situations., Confusing it with commands for physical activities., Not understanding the tone can be playful or serious.Using in formal discussions or settings., Mispronouncing as 'stopped it' in context., Confusing with similar phrases like 'cut it out'.
Usage notesUse this phrase when asking someone to stop a behavior, often in a lighthearted or frustrated tone. It is best suited for casual conversations among friends.Used in casual contexts to command someone to halt a behavior. Avoid in formal situations.

See it in real clips

Knock it off
Stop it

Frequently asked questions: Knock it off vs Stop it

What's the difference between Knock it off and Stop it?

Knock it off: Stop doing something annoying Stop it: To tell someone to cease their actions.

Which is more common: Knock it off and Stop it?

Stop it is the most common in everyday English.

Can you show an example of each?

Knock it off: Can you just knock it off with the loud music? Stop it: If you keep making that noise, I will have to say, 'Stop it!'

Can I use Knock it off and Stop it interchangeably?

Not always. Knock it off and Stop it are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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