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
act upon something
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "act upon something" is correct and usable in written English.
It can be used when referring to taking action based on a particular situation, information, or decision. Example: "After reviewing the report, the committee decided to act upon the recommendations provided by the consultants."
✓ Grammatically correct
Science
Harvard University
WikiHow
Alternative expressions(1)
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
60 human-written examples
For Anselm, then, it is obvious that a being who is in no way passive, who cannot experience anything of which he is not himself the origin, is better and greater than any being who can be acted upon by something outside himself.
Science
Matters based on a power to act that is founded upon something other than legislation, such as general contract law or business considerations, are more likely to be viewed as outside of the ambit of judicial review: Irving Shipbuilding Inc, supra; Devil's Gap Cottager (1982) Ltd. v. Rat Portage Band No. 38B, 2008 FC 812 at paragraphs 45-46, 2 F.C.R. 276.
Academia
Think before you act on something ALWAYS.
Wiki
Don't act like something else.
Wiki
Any speech act can be performed unconditionally, or conditionally upon something else.
Science
Just because something pops into the mind does not make it something real, something we need to act upon or believe in.
News & Media
It is noted that the semantic development of 'agency' has been considerably shaped by association with 'agent', which is defined, most generally, as a "person who or thing which acts upon someone or something; one who or that which exerts power; the doer of an action".
Science
Such analysis treats EC environmental law as a passive object, as something which actors act upon.
Academia
Can natural selection act to eliminate something that is irrelevant?
A definition of a doubt as something the jury would act upon would seem to create confusion rather than misapprehension.
Academia
And in Rinconada Bikol, a language of the Philippines, buray ni nanya (mother's vagina) is used commonly as we might use "Nuts!" Sex, though desired, is – in the angry, aggressive part of the mind – a dominating act, something performed upon a weaker recipient.
News & Media
Expert writing Tips
Best practice
Use "act upon something" when you want to emphasize a deliberate decision to take action based on careful consideration.
Common error
Avoid using "act upon something" in very casual conversations. Simpler phrases like "respond to" or "deal with" might be more appropriate.
Source & Trust
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "act upon something" functions as a verb phrase indicating the process of taking action based on a particular stimulus, piece of information, or situation. The Ludwig AI confirms that this phrase is grammatically correct and usable in written English.
Frequent in
News & Media
30%
Science
25%
Academia
20%
Less common in
Wiki
15%
Formal & Business
5%
Encyclopedias
5%
Ludwig's WRAP-UP
In summary, the phrase "act upon something" is a grammatically correct verb phrase signifying taking action as a consequence of some influence. Ludwig confirms its usability in written English. Although not very common, it finds its place in diverse contexts, including News & Media, Academia and Science. For those aiming for simplicity, alternatives like "take action on" or "respond to" may be more appropriate. It's advisable to use it mindfully, ensuring it aligns with the intended formality and context to avoid sounding out of place.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Take action on something
Replaces "act" with "take action", emphasizing the initiation of action.
Respond to something
Focuses on the reactive aspect of acting upon something.
React to something
Similar to "respond to", but can imply a more immediate or emotional response.
Follow through on something
Highlights the completion of an action that was started.
Implement something
Focuses on putting a plan or idea into effect.
Execute something
Implies carrying out a task or order with precision.
Capitalize on something
Highlights using something to your advantage.
Build upon something
Emphasizes expanding or developing something further.
Seize upon something
Implies taking advantage of an opportunity quickly and decisively.
Work on something
Suggests a more general effort to address or improve something.
FAQs
How can I use "act upon something" in a sentence?
Use "act upon something" to indicate taking action based on information or an event. For example, "The committee decided to "take action on" the recommendations from the report".
What are some alternatives to "act upon something"?
You can use alternatives like "take action on", "respond to", or "follow through on" depending on the context.
Is it better to say "act on something" or "act upon something"?
"Act on something" and "act upon something" are both correct, but "act on something" is more common in modern English. The choice depends on the desired level of formality.
When is it appropriate to use "act upon something" instead of "react to something"?
Use "act upon something" when the action is a deliberate response after considering information, whereas "react to something" implies a more immediate or emotional response.
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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
77%
Authority and reliability
4.1/5
Expert rating
Real-world application tested