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# alert

«alert» in Mova's school dictionary: **Watching and listening carefully, awake and ready to…** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

adjective (alert, more alert, most alert); noun (an alert, alerts); verb (alert, alerts, alerted, alerting)

### meaning for a pupil

1) Watching and listening carefully, awake and ready to notice danger or act quickly. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#m1)

2) A warning signal or message about danger or something important (a weather alert, a phone alert). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#m2)

3) To warn someone or tell them about something so they can act. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#m3)

4) On the alert / on high alert: ready and watching for danger. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#m4)

### sense in the lessons

In safety lessons «be alert» means keep your eyes and ears open: crossing roads, near water, in crowds. Phones and computers send alerts (notifications); authorities send weather alerts for storms, floods, fires. Animals are alert to predators. Phrases: stay alert, on the alert, high alert, alert someone to something, flood alert, amber alert.

### examples

- Stay alert when you cross the road. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x1)
- The meerkat stood up, alert for eagles. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x2)
- My phone gave an alert when the message arrived. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x3)
- The town got a flood alert after the heavy rain. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x4)
- A neighbour smelled smoke and alerted the fire brigade. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x5)
- The guard dog was alert all night. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x6)
- After a good sleep you feel more alert in class. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x7)
- Police are on high alert during the parade. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x8)
- His alert eye caught sight of a rawhide rope staked to the water's brink, which led away toward a small round hut in the distance. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/#x9)

### note

«Alert» as an adjective is the opposite of «sleepy» or «careless». «Alert someone to something» = warn them about it. Say «an alert» (starts with a vowel sound). Not to be confused with «allergy».

### In the corpora

- [Caimans rarely attack big grown capybaras, which are too big and alert, and the two often share river banks.](https://md.mova.elamur.ai/free/en/corpora/school/biology/158-amazon-giants-and-tall-tales/11/)
- [Bright screens and exciting games keep the brain alert and can delay melatonin, the sleepy hormone that rises when it gets dark.](https://md.mova.elamur.ai/free/en/corpora/school/biology/363-sleep-and-dreams-in-people/13/)
- [Ears pinned flat back often mean fear; ears pushed stiffly forward can mean the dog is on alert.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/21-reading-a-dog/13/)
- [Big weather dangers come with warnings, and a family that follows its emergency plan and listens to official alerts stays safe.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/120-home-myths-first-aid-and-warnings/3/)
- [During a hurricane, tornado or bushfire warning, the family follows its emergency plan and listens to official alerts.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/120-home-myths-first-aid-and-warnings/12/)

### Trees and pragmatics

[Every meaning and example of «alert» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/alert/), each sentence with its dependency tree and frames.