be alert for

USAGE SUMMARY

The phrase "be alert for" is correct and can be used in written English.
It is often used in the imperative form to indicate that someone should look out for something, such as a potential danger or problem. For example: "Be alert for signs of illness among your coworkers."

✓ Grammatically correct

News & Media

Academia

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Be alert for symptoms.

Harvard University

Be alert for ambiguities of every kind.

The New York Times

Be alert for suspicious persons or activity.

Stanford University

The lesson: be alert for unexpected things.

MIT Technology Review

"I have to be alert for my children," she said.

The New York Times

Addlers must also be alert for the rare air assault.

The New York Times

Be alert for even trivial infractions and investigate them immediately.

Harvard Business Review

Be alert for, and responsive to, mental health challenges.

Harvard Business Review

Be alert for slugs and use traps for control.

The New York Times

The words "to be always alert" are substituted for "to ever be alert" for clarity.

Cornell University

"If we have a 45-yard average, we have to be alert for that".

The New York Times

Expert writing Tips

Best practice

When using "be alert for", specify the exact things people should watch out for. Vague instructions are less helpful. For example, instead of "Be alert for problems", try "Be alert for signs of overheating or unusual noises."

Common error

Avoid using "be alert for" when you mean to convey a sense of alarm or panic. "Alert" suggests a state of readiness, while "alarmed" implies fear or anxiety. If the situation warrants immediate and urgent action, a stronger word might be necessary.

Linguistic Context

The phrase "be alert for" primarily functions as an imperative, urging someone to pay close attention to potential signs, dangers, or possibilities. As Ludwig AI confirms, it's commonly used to indicate that someone should look out for something. Examples include being alert for symptoms or suspicious activity.

Expression frequency: Very common

Frequent in

News & Media

33%

Academia

20%

Wiki

20%

Less common in

Science

18%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "be alert for" functions as an imperative, prompting vigilance and proactive awareness. As Ludwig AI indicates, it is grammatically correct and commonly used to advise or warn someone to watch out for something specific. Its register is generally neutral, making it suitable for various contexts, from formal news reports to informal instructions. The phrase is most frequently found in News & Media, Academia, and Wiki sources. While alternatives like "be watchful for" and "be vigilant for" exist, the choice depends on the specific nuance desired. When using "be alert for", specifying the target of vigilance enhances clarity and effectiveness.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

be watchful for

This alternative emphasizes careful observation and attentiveness.

be vigilant for

This suggests a state of heightened watchfulness against potential danger or difficulty.

be attentive to

Shifts the focus to paying close attention to something.

be aware of

Indicates a general knowledge and understanding of something.

keep an eye out for

An informal way to suggest watching for something specific.

stay informed about

Emphasizes the continuous process of gathering information.

pay attention to

Highlights the act of focusing one's mental effort on something.

monitor for

Suggests a systematic and regular observation.

be on the lookout for

An idiomatic expression suggesting active searching.

exercise caution regarding

Emphasizes the need for careful and prudent behavior.

FAQs

How can I use "be alert for" in a sentence?

The phrase "be alert for" is used to advise someone to watch out for something specific. For example, "During the storm, "be alert for" falling trees" or "Be alert for signs of fatigue while driving."

What are some alternatives to "be alert for"?

Some alternatives to "be alert for" include "be watchful for", "be vigilant for", or "keep an eye out for". The best choice depends on the specific context and the level of formality required.

Is it correct to say "be alert of" instead of "be alert for"?

No, the correct preposition to use with "be alert" in this context is "for". "Be alert of" is grammatically incorrect. You should always say ""be alert for"."

What's the difference between "be alert for" and "be aware of"?

"Be alert for" implies a specific call to watch out for something that might happen, whereas "be aware of" suggests a general knowledge or understanding. For example, you might "be alert for" signs of a scam, but "be aware of" the general risks of online transactions.