Alert vs To inform you

When to use each in English, with meaning, register, and examples.

Alert

Top 1,000 (very common)C1verb

To inform you

Top 2,000 (common)
Most common: Alert
 AlertTo inform you
Pronunciation🇬🇧 /["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/🇺🇸 /["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/🇬🇧 //tə ɪnˈfɔːm jʊ//🇺🇸 //tə ɪnˈfɔrm jʊ//
MeaningAware and paying attention; quick to notice things.To tell you something important.
ExampleNeighbours quickly alerted the emergency services.I want to inform you about the meeting tomorrow.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelC1-
Part of speechverb
Collocationsstay alert, alert to danger, make someone alert, be alert for signsinform you of, inform you about, require to inform, inform you subsequently, hope to inform
Antonymsunaware, distracted, sleepy-
Common mistakes'Alert' used as a noun instead of an adjective., Confused with 'alarmed', which means frightened., Using 'alerts' incorrectly as a verb form.Often used incorrectly as 'inform about'., Confused with 'to notify you'., Using too many formal words makes it sound unnatural.
Usage notesUse 'alert' to describe someone who is attentive. It can be used in formal and informal contexts, but avoid using it in very casual conversations.Use 'to inform you' to notify someone of important news or updates. It’s suitable for both formal and casual contexts.

See it in real clips

Alert
To inform you

Frequently asked questions: Alert vs To inform you

What's the difference between Alert and To inform you?

Alert: Aware and paying attention; quick to notice things. To inform you: To tell you something important.

Which is more common: Alert and To inform you?

Alert is the most common in everyday English.

Can you show an example of each?

Alert: Neighbours quickly alerted the emergency services. To inform you: I want to inform you about the meeting tomorrow.

Can I use Alert and To inform you interchangeably?

Not always. Alert and To inform you are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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