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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

act on

Grammar usage guide and real-world examples

USAGE SUMMARY

"act on" is correct and usable in written English.
You can use it to describe taking action on something, whether it's based on an instruction from somebody else or based on your own judgement. For example, "The president asked her to act on her plan as soon as possible."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"You act on it".

"I act on autopilot".

News & Media

The New York Times

Act on your own instincts.

News & Media

The New York Times

* Source: Act on CO2/Carbon Trust.

News & Media

Independent

"We must act on their behalf".

News & Media

The New York Times

We should act on this knowledge.

News & Media

The New Yorker

People act on that".

I act on impulse.

We act on it.

Selection does act on individual organisms.

News & Media

The Economist

Why did Assad act on Tuesday?

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "act on" when you want to emphasize taking decisive steps based on information, advice, or a feeling. For example: "The committee decided to act on the consultant's recommendations."

Common error

Avoid using "act on" when describing inaction or merely considering something. "Acting on" requires concrete steps. For example, don't say "They are acting on the proposal" if they are only discussing it; instead, say "They are considering the proposal."

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrasal verb "act on" primarily functions as a dynamic verb, indicating an action or process. Ludwig AI's analysis confirms its use in describing taking action based on information or affecting something, as seen in the examples provided.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

25%

Wiki

15%

Less common in

Formal & Business

10%

Academia

5%

Reference

5%

Ludwig's WRAP-UP

In summary, "act on" is a versatile phrasal verb with multiple meanings, primarily revolving around taking action based on something or exerting influence. As Ludwig AI confirms, it's grammatically sound and widely used. While alternatives exist, "act on" offers a direct and clear way to communicate decisive steps or effects. It is most common in news and media, scientific publications and Wiki articles, indicating a broad applicability and neutral tone. Remember to use "act on" when concrete steps are being taken, not just when something is being considered.

FAQs

How can I use "act on" in a sentence?

You can use "act on" to mean taking action based on something, such as information or advice. For example: "The police decided to act on the tip they received." You can also use it to describe affecting something, as in "Certain medications act on the nervous system."

What's the difference between "act on" and "react to"?

"Act on" often implies a deliberate decision and planned action, while "react to" suggests a more immediate, possibly instinctive response. For example, you might "act on" a strategy, but "react to" a sudden event.

What are some alternatives to "act on"?

Depending on the context, you could use alternatives like "take action on", "respond to", "implement", or "capitalize on". The best choice depends on the specific nuance you want to convey.

Is it correct to say "act upon" instead of "act on"?

While "act upon" is sometimes used, "act on" is generally more common and preferred in modern English. Both can be used to mean to take action as a result of something, but "act on" is usually more direct and concise.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

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.

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: