Repeat vs Run it again

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

Repeat

Top 1,000 (very common)A1verb

Run it again

Top 3,000 (common)
Most common: Repeat
 RepeatRun it again
Pronunciation🇬🇧 /["/rɪˈpiːt/","/rɪˈpiːts/","/rɪˈpiːtɪd/","/rɪˈpiːtɪŋ/"]/🇺🇸 /["/rɪˈpiːt/","/rɪˈpiːts/","/rɪˈpiːtɪd/","/rɪˈpiːtɪŋ/"]/🇬🇧 //rʌn ɪt əˈɡɛn//🇺🇸 //rʌn ɪt əˈɡɛn//
MeaningTo say or do something again.Do something again
ExamplePlease repeat the instructions so everyone understands.Can you run it again to see if it works now?
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 3,000 (common)
CEFR levelA1-
Part of speechverb
Collocationsjust, merely, simply, can only, be necessary to, need to, after, to, keep repeating somebody/​something, just, merely, simply, can only, be necessary to, need to, after, to, keep repeating somebody/​something, just, merely, simply, can only, be necessary to, need to, after, to, keep repeating somebody/​something, just, merely, simply, can only, be necessary to, need to, after, to, keep repeating somebody/​something, just, merely, simply, can only, be necessary to, need to, after, to, keep repeating somebody/​somethingrun it once more, run it twice, run it back again
Antonymsstop, ignore, forget-
Common mistakesConfused with 'replay' (for videos), Using 'repeated' instead of 'repeat' when requesting action, Misplacing the object, e.g., 'repeat me' instead of 'repeat this'Using it in overly formal writings or speeches., Confusing with 'run it twice' which implies doing it two times, not repeating., Not using context to clarify what to run again.
Usage notesUse 'repeat' when asking someone to say something again. It's generally neutral and appropriate in most contexts, but avoid using in very formal writing.Use in informal or conversational contexts. It's appropriate when referring to replaying an action, like a song or video.

See it in real clips

Repeat
Run it again

Frequently asked questions: Repeat vs Run it again

What's the difference between Repeat and Run it again?

Repeat: To say or do something again. Run it again: Do something again

Which is more common: Repeat and Run it again?

Repeat is the most common in everyday English.

Can you show an example of each?

Repeat: Please repeat the instructions so everyone understands. Run it again: Can you run it again to see if it works now?

Can I use Repeat and Run it again interchangeably?

Not always. Repeat and Run it again 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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