This is the 2411th most frequent Chinese word.
報警
"Report to the police" or "call the police."
Here, '報警' (to report to the police) is used in the context of alerting authorities about an emergency situation, specifically a fire incident.
如果发现火灾,请立即報警。
If you discover a fire, please immediately report it to the police.
In this sentence, '報警' is employed to describe the action of contacting law enforcement when a criminal activity is observed, in this case a burglary attempt.
小偷企图进入住宅,住户赶紧報警。
A thief attempted to enter the residence, so the occupant quickly called the police.
Here, '報警' indicates reporting to the police due to suspicion of wrongful acts, exemplifying its use in uncertain but potentially dangerous situations.