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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
to act on
Grammar usage guide and real-world examplesUSAGE SUMMARY
"to act on" is a correct and commonly used phrase in written English.
It means to take action or make a decision based on something, or to have an effect on something. Example: The government needs to act on the issue of climate change before it's too late. In this sentence, "act on" means to take action or make a decision based on the issue of climate change. Another example: The medicine will act on the bacteria and kill it. Here, "act on" means to have an effect on the bacteria, causing it to be killed.
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(20)
to carry on with
as a movie
during the opening phase
at first chronicles
in advance of starting
at first thinking
at the first table
as the first moves
in the initial phase
on first inspection
as a picture
at the first forum
at the first strike
as a person
in the first case
at first looking
before we started
at first image
to engage with
in the first plan
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
Failure to act on the environment.
News & Media
We want it to act on us.
News & Media
Bush tells U.N. to act on Iraq.
News & Media
They had time to act on this.
News & Media
I have to act on my feelings".
News & Media
He wants them to act on instinct.
News & Media
We need to act on that principle.
News & Media
The government has yet to act on either request.
News & Media
How do you get them to act on your advice?
News & Media
During that time Boone continued to act on television.
Encyclopedias
The LTA needs to act on her words, and quickly.
News & Media
Expert writing Tips
Best practice
When using "to act on", ensure the object of the preposition 'on' is clearly defined to avoid ambiguity. For example, specify what information, advice, or principle the action is based upon.
Common error
Avoid using "to act on" when the intended meaning is simply 'to act'. The preposition 'on' implies a basis or stimulus for the action. Using it without a clear connection to something that prompts the action creates a vague or nonsensical statement.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "to act on" functions primarily as a verb phrase, indicating an action taken as a result of something else. Ludwig AI confirms its common usage, particularly in expressing decisions or behaviors influenced by external factors or information.
Frequent in
News & Media
57%
Science
24%
Encyclopedias
5%
Less common in
Wiki
3%
Formal & Business
3%
Reference
0%
Ludwig's WRAP-UP
In summary, "to act on" is a highly versatile phrase used to describe taking action based on a particular stimulus, piece of information, or principle. Ludwig AI validates its correct and frequent usage across a multitude of contexts, ranging from news reporting to scientific research. It's a grammatically sound and commonly employed phrase, particularly in situations where a decision or action is a direct response to something. While "to act on" is broadly applicable, it is important to ensure the object of the preposition is clearly defined. Alternative phrases such as "to take action on" and "to respond to" can provide a slight variation in emphasis while retaining the core meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
to take action on
This alternative replaces "act" with "take action", adding emphasis on the initiation of action.
to respond to
This focuses on the reactive aspect of acting, implying a response to a stimulus.
to implement
This suggests putting a plan or decision into effect, emphasizing practical application.
to execute
This emphasizes the carrying out of a plan or order, often with a sense of precision and control.
to capitalize on
This indicates using something to one's advantage, adding a strategic element.
to leverage
Similar to "capitalize on", this suggests using something effectively to achieve a desired outcome.
to address
This emphasizes dealing with a problem or issue directly.
to heed
This highlights paying attention to advice or a warning and acting accordingly.
to follow through on
This emphasizes completing an action that was started or promised, highlighting commitment.
to build upon
This suggests using something as a foundation for further development or progress.
FAQs
How do you use "to act on" in a sentence?
Use "to act on" when you want to express taking action based on a piece of information, advice, or a principle. For example: "The committee will "to act on" the recommendations made by the consultants".
What can I say instead of "to act on"?
You can use alternatives like "to take action on", "to respond to", or "to implement" depending on the context.
Which is correct, "to act on" or "to act upon"?
"To act on" and "to act upon" are both correct and generally interchangeable. However, "to act on" is more common in contemporary usage.
What's the difference between "to act on" and "to react to"?
"To act on" implies taking initiative based on something, while "to react to" suggests a response to a stimulus. "To react to" is solely a response, while ""to act on"" can be proactive.
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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
4.6/5
Expert rating
Real-world application tested