Briefly vs For a moment vs For one second

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

Briefly

Top 2,000 (common)B2adverb

For a moment

Top 2,000 (common)

For one second

Top 3,000 (common)
 BrieflyFor a momentFor one second
Pronunciation🇬🇧 /["/ˈbriːfli/"]/🇺🇸 /["/ˈbriːfli/"]/🇬🇧 //fɔːr ə ˈməʊmənt//🇺🇸 //fɔr ə ˈmoʊmənt//🇬🇧 //fɔː wʌn ˈsɛkənd//🇺🇸 //fɔr wʌn ˈsɛkənd//
MeaningFor a short time or in a few words.for a short timeFor a very short time.
ExampleHe had spoken to Emma **only briefly**.Please wait for a moment while I grab my coat.He paused for one second before answering the question.
RegisterNeutralNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)Top 3,000 (common)
CEFR levelB2--
Part of speechadverb
Collocationsexplain briefly, discuss briefly, mention brieflypause for a moment, stop for a moment, think for a momentwait for one second, for one second only, pause for one second
Antonymslengthily, extensivelycontinuously, constantly, permanently, forever-
Common mistakesUsing 'brief' instead of 'briefly' (confusing the adjective and adverb)., Saying 'briefly discuss' when 'discuss briefly' is more natural., Misplacing it in a sentence so that it doesn't clearly modify the verb.Using '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.Used in a formal context where it sounds too casual., Confused with 'for a second' which is a more common variant., Misused to imply a longer duration than intended.
Usage notesUse 'briefly' when you want to indicate that something is short or to the point. It's suitable for formal and informal contexts. Avoid it when you need to describe something in detail.Used to indicate a brief duration or pause. Common in spoken and informal contexts, but also appropriate in writing.Use 'for one second' in informal contexts to emphasize brevity. It is not suitable for formal writing.

See it in real clips

For a moment
For one second

Frequently asked questions: Briefly vs For a moment vs For one second

What's the difference between Briefly, For a moment, and For one second?

Briefly: For a short time or in a few words. For a moment: for a short time For one second: For a very short time.

Can you show an example of each?

Briefly: He had spoken to Emma **only briefly**. For a moment: Please wait for a moment while I grab my coat. For one second: He paused for one second before answering the question.

Can I use Briefly, For a moment, and For one second interchangeably?

Not always. Briefly, For a moment, and For one 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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