C1verb1K

UK/["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/US/["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/

Meaning of Alert

In simple words: Aware and paying attention; quick to notice things.

Alert in a sentence

  • Neighbours quickly alerted the emergency services.
  • Alerted by a noise downstairs, he sat up and turned on the light.
  • The coastguard were alerted that a yacht had run into difficulties.
  • They had been alerted to the possibility of further price rises.

How to use Alert

Use 'alert' to describe someone who is attentive. It can be used in formal and informal contexts, but avoid using it in very casual conversations.

Grammar pattern

be + alert

Memory hint

Think of a 'bird alert' in the sky, always on the lookout!

Related words

Collocations with Alert

  • stay alert
  • alert to danger
  • make someone alert
  • be alert for signs

Synonyms for Alert

Opposites of Alert

  • unaware
  • distracted
  • sleepy

Common mistakes with Alert

  • 'Alert' used as a noun instead of an adjective.
  • Confused with 'alarmed', which means frightened.
  • Using 'alerts' incorrectly as a verb form.

Compare Alert with Aware, Observant, Watchful

Alert appears in

Alert in other languages

More words like Alert

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Frequently asked questions about Alert

What does Alert mean?

Aware and paying attention; quick to notice things.

What is the definition of Alert?

to warn somebody about a dangerous situation or one that requires immediate action

How do you use Alert in a sentence?

Neighbours quickly alerted the emergency services.

Can you give another example of Alert?

Alerted by a noise downstairs, he sat up and turned on the light.

What are synonyms for Alert?

Common alternatives include vigilant, aware, attentive, observant, watchful.

What is the opposite of Alert?

Opposite meanings include unaware, distracted, sleepy.

What words go with Alert?

It commonly pairs with stay alert, alert to danger, make someone alert, be alert for signs.

What are common mistakes when using Alert?

'Alert' used as a noun instead of an adjective. Confused with 'alarmed', which means frightened. Using 'alerts' incorrectly as a verb form.

How do you pronounce Alert?

US: /["/əˈlɜːrt/","/əˈlɜːrts/","/əˈlɜːrtɪd/","/əˈlɜːrtɪŋ/"]/, UK: /["/əˈlɜːt/","/əˈlɜːts/","/əˈlɜːtɪd/","/əˈlɜːtɪŋ/"]/. Listen to the audio above to hear native pronunciation.

When should I use Alert?

Use 'alert' to describe someone who is attentive. It can be used in formal and informal contexts, but avoid using it in very casual conversations.

What CEFR level is Alert?

"Alert" is at C1 level on the CEFR scale.