Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
upon the outbreak
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "upon the outbreak" is correct and usable in written English.
It can be used to indicate the moment something begins or occurs, often in reference to events like crises or conflicts. Example: "Upon the outbreak of the pandemic, many countries implemented strict travel restrictions."
✓ Grammatically correct
Encyclopedias
News & Media
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
59 human-written examples
Upon the outbreak of World War II, Hélion enlisted in the French army in 1940.
Encyclopedias
Upon the outbreak of revolutionary disturbances in 1905, Trotsky returned to Russia.
Encyclopedias
Upon the outbreak of the Civil War, however, he sided with the Confederacy and organized his own company of troops.
Encyclopedias
Nevertheless, upon the outbreak of the Revolution in 1789, Hérault joined the crowd that stormed the Bastille (July 14).
Encyclopedias
Upon the outbreak of World War I, political Zionism reasserted itself, and its leadership passed to Russian Jews living in England.
Encyclopedias
A graduate of the College of New Jersey (now Princeton University), Lee joined Washington's army immediately upon the outbreak of the American Revolution (1775 83).
Encyclopedias
This made possible de Valera's proclamation in September 1939, upon the outbreak of World War II, that Ireland would remain neutral and would resist attack from any quarter.
Encyclopedias
Upon the outbreak of the Dutch War (or Third Anglo-Dutch War) in 1672, Nicolls volunteered to fight and was killed in the naval battle of Solebay.
Encyclopedias
Upon the outbreak of the French Revolution, he retired to a small estate at Blois and devoted himself to scientific research.
Encyclopedias
He was inspector general of cavalry from 1910 to 1914, and upon the outbreak of World War I he took a cavalry division to France.
Encyclopedias
Upon the outbreak of the Roman Catholic rebellion in Ireland in 1641, Ormonde was appointed a lieutenant general in the English army.
Encyclopedias
Expert writing Tips
Best practice
Use "upon the outbreak" to clearly signal the start of a significant event, particularly when emphasizing the immediate consequences or actions taken in response. This phrase lends a formal tone to your writing.
Common error
Avoid using "upon the outbreak" in casual or informal writing. Opt for simpler alternatives like "when it started" or "as soon as it happened" to maintain a natural tone.
Source & Trust
70%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon the outbreak" functions as a prepositional phrase indicating the point in time when an event begins. As Ludwig AI explains, it's grammatically correct and is used to mark the commencement of significant occurrences.
Frequent in
Wiki
31%
Encyclopedias
26%
News & Media
9%
Less common in
Science
34%
Ludwig's WRAP-UP
In summary, "upon the outbreak" is a grammatically sound phrase used to denote the beginning of an event, often carrying a sense of immediacy. As highlighted by Ludwig AI, it's suitable for formal contexts such as encyclopedias and news reports, signaling a temporal relationship between the event's start and subsequent actions. While common, it should be used judiciously in informal settings, where simpler alternatives like "at the start" or "when it began" might be more appropriate. Its effectiveness lies in its clarity and formality, making it ideal for scenarios requiring a precise and somewhat elevated tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
at the onset
Replaces "upon" with "at" and uses "onset" instead of "outbreak", indicating the beginning of something.
following the start
Uses "following" to indicate sequence and "start" as a synonym for "outbreak".
with the emergence
Employs "with" and "emergence" to denote the beginning or appearance of something.
at the commencement
Replaces "outbreak" with the more formal term "commencement", indicating a beginning.
when it erupted
Uses "erupted" to convey a sudden and forceful beginning.
as soon as it began
Expresses immediacy with "as soon as" and uses the simple verb "began".
at the inception
Replaces "outbreak" with "inception", emphasizing the initial stage or start.
in the wake of the eruption
Indicates something happening immediately after a sudden and violent beginning.
with the dawning
Uses "dawning" to metaphorically represent the beginning or emergence of something.
on the breaking out
Inverts the structure while maintaining the core meaning using gerund form.
FAQs
How can I use "upon the outbreak" in a sentence?
You can use "upon the outbreak" to indicate the start of an event. For example, "Upon the outbreak of the war, many citizens fled the city."
What are some alternatives to "upon the outbreak"?
You can use alternatives like "at the onset", "following the start", or "with the emergence" depending on the context.
Is "upon the outbreak" formal or informal?
The phrase "upon the outbreak" is generally considered a more formal expression. In informal contexts, simpler alternatives may be more appropriate.
What's the difference between "upon the outbreak" and "after the outbreak"?
"Upon the outbreak" indicates something happening immediately as the event starts, while "after the outbreak" refers to a period following the initial event.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
70%
Authority and reliability
4.4/5
Expert rating
Real-world application tested