Momentarily: Meaning and Regional Usage
“Momentarily” has an important regional ambiguity. Cambridge gives the short-duration sense and separately records an American-English use meaning “very soon.” This guide keeps those senses explicit rather than declaring one universally correct.
“Momentarily” can mean “for a very short time.” Cambridge also records an American-English sense meaning “very soon,” so context and audience determine which reading is likely.
Key details
Choose the right form
| Sentence type | Possible reading | Clarity choice |
|---|---|---|
| She paused momentarily. | for a very short time | Usually clear from context. |
| The train will arrive momentarily. | very soon in American English | Use “very soon” for an international audience if ambiguity matters. |
| The signal disappeared momentarily. | briefly | “Briefly” can be clearer in technical contexts. |
Quick tests
Audience test
Could the audience read “momentarily” as either “briefly” or “very soon”?
If yes: Replace it with the exact time relation you mean.
If no: Keep the established sense that is clear in context.
Caveat: The “very soon” sense is specifically recorded in American English.
Examples
The lights went out momentarily.
The context indicates a brief duration.
The train will arrive momentarily.
In American English this can mean “very soon”; use that clearer wording for an international audience when needed.
Further guidance
Meaning
Use context to distinguish duration from imminence: “She paused momentarily” means briefly, while American “The train will arrive momentarily” can mean very soon.
Regional Usage
The “very soon” sense is specifically recorded for American English, while the short-duration sense is broadly established.
Usage Boundary
For an international audience, choose “briefly” or “very soon” when the distinction matters; that removes the regional ambiguity instead of treating either established sense as an error.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- momentarily — Cambridge Dictionary (opens in a new tab)Cambridge University Press & Assessment · Momentarily for a very short time, with an additional very-soon sense in American English