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
as upon opening
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as upon opening" is correct and usable in written English.
It can be used to describe an action or state that occurs immediately after something is opened, often in a context related to documents, packages, or applications. Example: "As upon opening the box, I was greeted with the delightful scent of fresh cookies."
✓ Grammatically correct
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Based on that theory, Heron of Alexandria argued that the speed of light must be infinite because distant objects such as stars appear immediately upon opening the eyes.
Wiki
The theatre is formatted as proscenium, and was considered 'ultra-modern' upon opening.
Wiki
Large amounts of urine, often in excess of 100 litres, spontaneously escape through the incision upon opening the abdominal cavity (Fig. 13) as shown in Additional file 1.
Structures have also been made that dynamically open or close, potentially acting as a molecular cage to release or reveal a functional cargo upon opening.
Wiki
Click the Windows orb at the lower-left corner, which doubles as the Start menu, then click on the text box right above it upon opening.
Wiki
Upon opening to the public in May 2000, the Tate Modern received critical acclaim and served as a catalyst for the revitalization of its South Bank neighbourhood.
Encyclopedias
Upon opening the jar, not much happened.
News & Media
The Consumer Financial Protection Bureau, which was created as part of the 2010 Dodd-Frank financial reform legislation, inherited responsibility for regulating credit card fees upon opening its doors last summer.
News & Media
These contacts are disrupted upon opening.
Science
Upon opening the intestine, the mucosa was discolored but intact.
Science
The two are returned together but separated immediately upon opening.
Expert writing Tips
Best practice
Use "as upon opening" when you want to clearly and concisely link an action or event directly to the act of opening something, emphasizing the immediate consequence or state change. This phrasing is suitable when the timing is significant.
Common error
Avoid using "as upon opening" in situations where simpler alternatives like "upon opening" or "when opened" are more appropriate. Overusing this phrase can make your writing sound unnecessarily complex or stilted.
Source & Trust
78%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as upon opening" functions as a conjunction introducing a clause that describes an event or state that occurs immediately following the act of opening something. Ludwig indicates that the phrase is grammatically correct and usable.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "as upon opening" is grammatically correct but relatively uncommon. Ludwig confirms its usability, though it is important to consider simpler alternatives like "upon opening" or "when opened" for improved clarity and conciseness. Its function is to link actions directly with the opening of something, and its tone is neutral to slightly formal, making it suitable for descriptive writing, despite its infrequent usage.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
immediately after opening
Focuses on the temporal proximity between the opening action and the subsequent event, emphasizing immediacy.
right after opening
Similar to "immediately after opening", but slightly more informal.
on opening
A more concise way of expressing the same relationship, suitable for formal contexts.
when opening
Introduces a clause that describes what happens at the point something is opened.
upon unveiling
More suitable when something is being revealed or made public.
as soon as it is opened
Highlights the immediate sequence of events after the opening.
at the moment of opening
Emphasizes the specific time when the opening occurs.
following the opening
Highlights the temporal sequence, but less immediate than alternatives.
with the opening of
Focuses on the event initiating something.
as a result of opening
Highlights the causal relationship between opening and subsequent events.
FAQs
How can I use "as upon opening" in a sentence?
You can use "as upon opening" to describe an immediate action or state after something is opened. For example, "As upon opening the package, the smell of lavender filled the room."
What phrases are similar to "as upon opening"?
Alternatives include "upon opening", "when opened", or "immediately after opening", depending on the context.
Is "as upon opening" formal or informal?
The phrase "as upon opening" is relatively formal. In more casual contexts, consider using simpler alternatives like "when you open it" or "right after opening".
What is the difference between "as upon opening" and "upon opening"?
"As upon opening" emphasizes the immediate consequence of opening something, while "upon opening" simply indicates that something happens at the time of opening. The presence of "as" adds a subtle layer of cause and effect.
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
78%
Authority and reliability
3.5/5
Expert rating
Real-world application tested