For a moment vs Just for a second

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

For a moment

Top 2,000 (common)

Just for a second

Top 2,000 (common)
 For a momentJust for a second
Pronunciation🇬🇧 //fɔːr ə ˈməʊmənt//🇺🇸 //fɔr ə ˈmoʊmənt//🇬🇧 //dʒʌst fə ə ˈsɛkənd//🇺🇸 //dʒʌst fɔr ə ˈsɛkənd//
Meaningfor a short timeOnly for a very short time.
ExamplePlease wait for a moment while I grab my coat.Can you hold this just for a second?
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
Collocationspause for a moment, stop for a moment, think for a momentwait just for a second, pause just for a second, stop just for a second, think just for a second, look just for a second
Antonymscontinuously, constantly, permanently, forever-
Common mistakesUsing 'for a moment' instead of 'for a minute' when needing a longer time., Confusing with 'in a moment', which implies something will happen soon., Omitting it when describing short interruptions in storytelling.Saying 'just for seconds' instead of 'just for a second'., Using it in formal contexts where brevity is less common., Misplacing the phrase in sentences, making it unclear.
Usage notesUsed to indicate a brief duration or pause. Common in spoken and informal contexts, but also appropriate in writing.Used in informal conversations to indicate a brief duration. Avoid in very formal writing or speeches.

See it in real clips

For a moment
Just for a second

Frequently asked questions: For a moment vs Just for a second

What's the difference between For a moment and Just for a second?

For a moment: for a short time Just for a second: Only for a very short time.

Can you show an example of each?

For a moment: Please wait for a moment while I grab my coat. Just for a second: Can you hold this just for a second?

Can I use For a moment and Just for a second interchangeably?

Not always. For a moment and Just for a second 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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