This is the 2312th most frequent Chinese word.
预警
"预警" means "early warning."
In this context, '预警' refers to an official issuance of a warning about an upcoming or potential weather event.
政府发布了台风预警，以提醒民众做好准备。
The government issued a typhoon warning to alert citizens to prepare.
Here, '预警' is used to denote the proactive notification of fire risks enabled by technology.
这个新型传感器能够提供实时火灾预警。
This new type of sensor can provide real-time fire warnings.
In this sentence, '预警' describes an anticipatory alert regarding negative trends or developments in a business context.