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
become alert
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "become alert" is correct and usable in written English.
You can use it to describe the action of gaining mental focus when something important or demanding is about to happen. For example: I need to become alert and prepared for the test tomorrow.
✓ Grammatically correct
News & Media
Science
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
24 human-written examples
Attention revolves around alertness (the ability to become alert and focus on a task) and vigilance (sustained alertness).
The body and mind become alert rather than passive.
News & Media
If a speeding car approaches, they become alert.
News & Media
Also, Dr. Domenech said, more poor countries have become alert to outbreaks.
News & Media
Since Freud, we have become alert to the way that writing tries to hide, and fails to cover up, the anxieties that disturb it.
News & Media
He immediately offered to become a founding member and signed TLM up, without permission, to support what was to become Alert (All Africa leprosy and rehabilitation training centre).
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
36 human-written examples
Since much of a person's knowledge and interests can be communicated in general terms in the clear, direct messages will eventually become alerts to specific people or groups about where to look inside the @mention cloud.
News & Media
Slowly, however, his aunt became alert to his presence.
News & Media
Then, at the Royal Swedish Academy of Art, in Stockholm, he became alert to contemporary art, and studied techniques of Scandinavian wood design.
News & Media
His imprisonment warned comedy off topical references, but the Roman audience became alert in applying ancient lines to modern situations and in demonstrating their feelings by appropriate clamour.
Encyclopedias
With it in mind, I became alert to the meaningful shifts of form and feeling from one tribal manner to the next.
News & Media
Expert writing Tips
Best practice
Use "become alert" to describe a transition to a state of heightened awareness, especially in response to a specific stimulus or situation. It indicates a change from a less attentive state to one of readiness.
Common error
Avoid using "become alert" in overly passive constructions that dilute the agency of the subject. Instead of "he was made to become alert", opt for "he became alert" for a more direct and impactful statement.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "become alert" functions primarily as a verb phrase, indicating a process or action of transitioning to a state of heightened awareness or vigilance. Ludwig's examples showcase it describing the action of gaining mental focus or awareness.
Frequent in
News & Media
36%
Science
36%
Wiki
7%
Less common in
Encyclopedias
3%
Science & Research
7%
Academia
3%
Ludwig's WRAP-UP
The phrase "become alert" is a grammatically sound and commonly used verb phrase that signifies the process of transitioning to a state of heightened awareness or vigilance. As confirmed by Ludwig AI, it is suitable for describing the action of gaining mental focus, particularly in response to specific stimuli. Its usage spans various contexts, from news reports to scientific publications, indicating a neutral to professional register. Alternative phrases such as "heighten awareness" or "sharpen focus" can provide nuanced variations, but "become alert" remains a direct and effective way to convey a change in attentiveness.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
heighten awareness
Emphasizes the process of increasing one's level of awareness.
sharpen focus
Highlights the improvement of concentration and mental clarity.
be vigilant
Highlights a state of continuous and proactive watchfulness.
increase vigilance
Focuses on enhancing watchfulness and attentiveness to potential dangers.
grow aware
Focuses on the process of gradually gaining awareness.
perk up
Suggests a sudden awakening or revitalization of alertness.
develop alertness
Indicates a gradual process of improving one's overall state of readiness.
turn one's attention
Suggests shifting focus from one thing to another, thereby becoming alert in the new context.
wake up
Refers to transitioning from a state of sleep or unawareness to alertness.
pay attention
Implies directing one's focus and awareness to something specific.
FAQs
How can I use "become alert" in a sentence?
You can use "become alert" to describe the process of transitioning to a state of heightened awareness. For example, "The soldiers "become alert" at the sound of the alarm" or "I "become alert" whenever I hear my name called".
What is a good alternative to "become alert"?
Alternatives include "heighten awareness", "sharpen focus", or "increase vigilance". The best choice depends on the specific nuance you want to convey.
Is it correct to say "became alerted" instead of "become alert"?
While "became alerted" isn't incorrect, it's less common and can sound awkward. "Become alert" is generally preferred for its simplicity and directness.
What's the difference between "become alert" and "be alert"?
"Become alert" implies a transition to a state of alertness, whereas "be alert" suggests a continuous state of vigilance. For example, "Soldiers must always "be alert"", but "The guard "become alert" when he heard a noise".
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested