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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
calls upon
Grammar usage guide and real-world examplesUSAGE SUMMARY
"calls upon" is a correct and usable phrase in written English.
It is an idiomatic phrase which means to formally ask, invoke or implore someone or a group to do something. For example: "The mayor calls upon the citizens of the city to volunteer at the local food bank."
✓ Grammatically correct
News & Media
Academia
Encyclopedias
Alternative expressions(5)
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
60 human-written examples
To pace herself, she calls upon technique.
News & Media
He calls upon them now for comfort.
News & Media
A reticent governor calls upon the National Guard.
Antonia calls upon her mother's portrait to help her.
Encyclopedias
Scotland Yard often calls upon him in moments of bafflement.
News & Media
She calls upon an external deity only once.
News & Media
It calls upon Renaissance musicians to serenade her son.
News & Media
Preparing for a mentally demanding task calls upon cognitive and motivational resources.
Science
However, the allocation of the available capacity to the learning calls upon learners‟ motivation.
Rather than accepting this fate, heboldly fights back and calls upon the government to change things.
The report calls upon the South African government to strengthen its prevention and response efforts.
Academia
Expert writing Tips
Best practice
Use "calls upon" when you want to emphasize a formal request or expectation from someone or an organization. For example, "The United Nations calls upon all nations to reduce carbon emissions."
Common error
While grammatically correct, "calls upon" can sound overly formal in casual conversation. In informal settings, consider using alternatives like "asks" or "requests" to maintain a natural tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "calls upon" functions as a verb phrase, specifically the third-person singular present tense of the phrasal verb "call upon". As Ludwig AI points out, it signifies a formal request or appeal, often directed towards an authority or group.
Frequent in
News & Media
39%
Academia
30%
Encyclopedias
7%
Less common in
Science
6%
Wiki
6%
Formal & Business
6%
Ludwig's WRAP-UP
In summary, "calls upon" is a verb phrase used to make a formal request or appeal. Ludwig AI confirms its grammatical correctness and widespread usage. While "calls upon" appears most frequently in news and media, it is also common in academic writing and encyclopedias, indicating a register that is generally neutral to formal. When writing, it's best to use "calls upon" to emphasize the seriousness of the request and to avoid overusing it in informal conversation. Alternatives include phrases like "appeals to", "invokes", and "relies on", depending on the specific nuance you want to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
appeals to
Focuses on making an earnest or formal request.
invokes
Suggests a more formal or ceremonial appeal, often to a higher authority or principle.
relies on
Emphasizes dependence on something for support or assistance.
draws on
Implies utilizing something as a resource or source of inspiration.
turns to
Indicates seeking help or guidance from someone or something.
enlists the help of
Specifically refers to seeking assistance from another person or group.
solicits
Implies asking for something, such as support or opinions, often in a formal manner.
seeks assistance from
Directly states the act of looking for aid or support.
implores
Highlights a desperate or urgent request.
requests formally
Emphasizes the official nature of the request.
FAQs
What does "calls upon" mean?
"Calls upon" means to formally ask, request, or appeal to someone to do something. It suggests a sense of authority or urgency.
How to use "calls upon" in a sentence?
You can use "calls upon" when you want to make a formal request or appeal. For example: "The organization "calls upon" the government to take action".
What can I say instead of "calls upon"?
You can use alternatives like "appeals to", "invokes", or "relies on" depending on the context.
Is "call on" the same as "calls upon"?
While related, "call on" typically means to visit or ask someone to speak or participate, while "calls upon" signifies a more formal request or appeal for action. They are not interchangeable in all contexts.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested