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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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on constant alert

Grammar usage guide and real-world examples

USAGE SUMMARY

"on constant alert" is correct and usable in written English.
You can use it to describe a person or group of people who are watching or waiting for something frequently and vigilantly. For example, "The security team was on constant alert, patrolling the property day and night."

✓ Grammatically correct

News & Media

Academia

Wiki

Human-verified examples from authoritative sources

Exact Expressions

48 human-written examples

(Secondary note: A friend said that her mom was really upsetting her with all of the fake political news stories she posted in recent months and that she felt like a one-woman fact checker on constant alert. Please do not ever post news that is fake, even if you don't tag your child in the post. Here's how to spot fake news and report it to Facebook.

News & Media

Huffington Post

Mr. Safir, for one, favored keeping fighter jets on constant alert to respond to any aircraft approaching the airspace over either Manhattan or the statue.

News & Media

The New York Times

Through brief encounters and troubling retellings of recent news, Rankine puts one, as a white reader, on constant alert for any unconscious racism in oneself.

The pieces feed off one another, but the crowded, playgroundlike setup has the gallery guards on constant alert.

The army and the police are on constant alert.

News & Media

The New York Times

Greece has rescue teams on constant alert and has pledged its support for Iran.

News & Media

The Guardian
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

12 human-written examples

To cut down on constant alerts every time you go to the office or home, it tries to learn where you go every day, and only gives you an alert when you are in a place it deems to be "unusual".

News & Media

TechCrunch

The base was in a state of constant alert.

News & Media

The New Yorker

I have yet to tie myself to a tree trunk, but I must be on a constant alert for the dreaded sound of the chain saw and then determine if it is a street tree being attacked.

News & Media

The New York Times

Therefore, the immune systems of all persons in the USA, who are in compliance with the CDC scheduled vaccinations, are on the constant alert and capable for the instant response, which is promptly reinforced and amplified by their immune systems' memory cells.

The nation's armed forces and law enforcement are on constant high alert.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "on constant alert" to convey a sense of sustained readiness and vigilance. This phrase is suitable when describing situations or entities that must be prepared for potential threats or changes at all times.

Common error

Avoid using "on constant alert" when describing temporary or short-lived situations. This phrase implies a continuous and sustained state of readiness, making it inappropriate for fleeting events.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "on constant alert" functions as an adjectival phrase, modifying a noun or pronoun to describe a state of continuous readiness and vigilance. As Ludwig indicates, it is used to describe a person or group of people who are watching or waiting for something frequently and vigilantly.

Expression frequency: Very common

Frequent in

News & Media

72%

Academia

10%

Wiki

6%

Less common in

Science

6%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "on constant alert" is a grammatically sound and frequently used expression that describes a state of sustained readiness and vigilance. Ludwig confirms its correct usage and provides numerous examples from various sources. This phrase is most commonly found in news and media, as well as academic contexts. Remember to use this phrase when describing entities that maintain continuous watchfulness, and avoid using it for short-term situations. While alternatives like "on high alert" and "on the lookout" exist, "on constant alert" specifically conveys a sense of continuous preparedness.

FAQs

How can I use "on constant alert" in a sentence?

You can use "on constant alert" to describe a state of readiness, for example: "The security team was "on constant alert" during the event."

What are some alternatives to "on constant alert"?

Alternatives include "on high alert", "on the lookout", or "ever vigilant", depending on the specific nuance you want to convey.

Is it more appropriate to say "on constant alert" or "on high alert"?

While both phrases are similar, "on constant alert" emphasizes continuous readiness, while "on high alert" suggests an elevated level of readiness, often in response to a specific threat or situation.

What does it mean to be "on constant alert"?

To be "on constant alert" means to be in a state of continuous readiness and vigilance, always prepared to respond to potential threats or changes. It suggests a sustained and unwavering attentiveness.

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Real-world application tested

Most frequent sentences: