発はっ報ぽう

は

っ

ぽ

う

Meanings

1

noun, noun or participle which takes 'suru'

alarm activation; sounding a warning

Technical term used in security, disaster prevention, and monitoring systems. Often refers to the automatic or manual triggering of an alert.

火か災さい感かん知ち器きが煙けむりを検けん知ちし、自じ動どう的てきに発はっ報ぽうした。
The fire detector sensed smoke and automatically activated the alarm.
警

けい

備び

員いん

が

異い

常じょう

を

確かく

認にん

し

、

本ほん

部ぶ

に

発はっ

報ぽう

し

た

。

The security guard confirmed the anomaly and reported it to headquarters.

警けい報ほう
警報 is a general alarm or warning, while 発報 focuses on the act of issuing or activating that alarm.
通つう報ほう
通報 is a report or notification to authorities, often by a person. 発報 can be automatic or manual, and is more system-oriented.

Compound of 発 (はつ, 'emit, send') and 報 (ほう, 'report, information'). The reading はっぽう results from regular gemination before /h/.