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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
arm upon
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "arm upon" is not correct and does not convey a clear meaning in written English.
It is not a standard expression and may confuse readers due to its lack of context or established usage. Example: "He rested his arm upon the table."
⚠ May contain grammatical issues
Science
News & Media
Academia
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
8 human-written examples
Because of the follow-through of his arm upon release, the ball curves out of his hand, continuing off the lush green of the closest untouched pitch.
News & Media
A flight of pigeons..the steepness of the ramp...the gentle, rockerlike swing of the loop of the rusty chain you rested your arm upon.
News & Media
Looking like jockey on a muddy track, I pumped my weary arm upon crossing the finish line.
News & Media
Words spoken, a line formed in the church's center aisle, an opportunity to share private condolences with the mother and father as well as Adrian's younger brothers, Roman, 16, and Solan, 10, who at times casually placed his arm upon the casket.
News & Media
Outcomes reported on patients who crossed over to the combination arm upon progression were summarised using data before the cross-over from single-agent selumetinib.
Science
CEACs will be based on bootstrapped (to account for non-normally distributed data) regressions of arm upon net benefits, controlling for clusters.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
General Dempsey already started a study of what he calls "the profession of arms" upon being sworn in just over a year ago, as the armed forces entered a second decade of ground conflict sustained by an all-volunteer force.
News & Media
Conformational changes were observed in the arms upon metal ion binding.
Later, Zimmerman asked us to try it the opposite way, crossing our arms upon entering the board and releasing them as we banished others.
News & Media
The sinister-voiced, twitching puppet comments on things that the boy imagines, in what sounds like a game of exquisite cadaver: "decapitated head upon severed arms upon dismembered legs upon mutilated trunk-like logs and branches in a fireplace".
News & Media
When Parker subsequently retired, having failed to advance in rank, it was widely believed among his colleagues that his politically unacceptable exposure of the shortcomings of small arms, upon which every soldier's life depended, was a factor.
News & Media
Expert writing Tips
Best practice
Opt for clearer, more common prepositions like "on" or "over" instead of "upon" when describing the position of an arm. For example, prefer "He rested his arm on the table" over "He rested his arm upon the table".
Common error
Avoid using "upon" in contemporary writing unless aiming for a deliberately archaic or formal tone. In most cases, "on" is the more appropriate and natural choice, ensuring your writing remains accessible and avoids sounding stilted.
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "arm upon" functions as a prepositional phrase, typically attempting to describe the placement or position of an arm in relation to another object or surface. As Ludwig AI explains, this usage is generally considered grammatically incorrect in modern English.
Frequent in
Science
43%
News & Media
29%
Academia
14%
Less common in
Wiki
14%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "arm upon" is generally considered grammatically incorrect and not recommended for use in modern English writing. While it occasionally appears in scientific or academic texts, as Ludwig AI notes, it is not a standard expression and may cause confusion. It would be best to replace "arm upon" with a more common and clear alternative like "arm on" or "arm over". Given its limited and inconsistent usage, relying on more conventional phrasing will enhance clarity and ensure effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
arm on
Replaces "upon" with "on", a more common and generally accepted preposition in modern English.
arm over
Suggests a position above or across something, replacing "upon" to indicate placement.
hand on arm
Emphasizes the action of placing a hand on someone's arm for support or comfort.
rested arm on
Specifies the action of resting the arm on a surface or object.
placed arm on
Focuses on the action of carefully placing the arm on something.
lean arm against
Suggests leaning the arm against something for support.
arm against
Indicates the arm is positioned against something for support.
brace arm against
Implies using the arm to brace oneself against something.
arm touching
Simply indicates that the arm is in contact with something.
arm in contact with
Formally states that the arm is touching something, often in a descriptive context.
FAQs
Is "arm upon" grammatically correct?
The phrase "arm upon" is generally considered grammatically incorrect in modern English. It's better to use "arm on" or "arm over" depending on the context.
What can I say instead of "arm upon"?
You can use alternatives like "arm on", "arm over", or "rested arm on" depending on the context.
Which is correct, "arm upon" or "arm on"?
"Arm on" is generally the correct and more commonly used phrase in contemporary English. "Arm upon" sounds archaic and is rarely used.
When is it appropriate to use "upon" instead of "on"?
While "upon" can sometimes be used for a more formal or archaic tone, in most contexts involving the placement of an arm, "on" is the preferred and more natural choice.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested