Early warning

/ˈɜːlɪ wˈɔːnɪŋ/

/ˈɜːli wˈɔːɹnɪŋ/

Early warning

something that warns and informs one of a potential threat or danger in advance

Examples

1. An earlier warning gained urgency.

2. Even very young children can display early warning signs of mental health issues.

3. Scientists are also working on early warning systems.

4. And for some species, like tomatoes, this early warning system also alerts their neighbors.