alertness

noun (alertness — uncountable)

«alertness» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

Everyday

Alertness is being awake, watchful and ready to notice and react quickly. tree →

In the lessons

In safety and health it matters for crossing roads, driving and learning; sleep and breakfast help alertness. In science it is linked to the brain and caffeine. Phrases: mental alertness, stay alert, increase alertness.

Examples

Sleep helps your alertness in class. tree →
The guard's alertness stopped the thief. tree →
Drivers need full alertness. tree →
Too much screen time at night lowers alertness the next day. tree →
Dogs show alertness when they prick up their ears. tree →
Coffee can increase alertness in adults. tree →

Note

Uncountable. From alert + -ness. Related: alert (adjective, noun, verb). Children should not use energy drinks to boost alertness.

On Mova

Trees and pragmatics of «alertness» in the school dictionary: every meaning and example parsed by Mova, with its dependency tree and frames.
«alertness» in the school dictionary on Mova free.

This page in Markdown → https://md.dictionary.elamur.ai/free/en/english/alertness/