報知器(ほうちき)

ほうちき
noun
alarm; detector (device)
1. alarm device; detector
A device that detects danger such as fire or smoke and sounds an alarm. Most often refers to a fire alarm or smoke detector.
火災(かさい)報知器(ほうちき)が鳴(な)った。
The fire alarm went off.
報知器(ほうちき)の電池(でんち)を交換(こうかん)する。
I replace the battery in the alarm.
法律(ほうりつ)で、住宅(じゅうたく)には火災(かさい)報知器(ほうちき)の設置(せっち)が義務付(ぎむづ)けられている。
By law, homes are required to have fire alarms installed.

Compound of 報知(ほうち) (notification, reporting) + 器(き) (device). Almost always appears in the compound 火災(かさい)報知器(ほうちき) (fire alarm).

COMMON COLLOCATIONS:

  • 火災(かさい)報知器(ほうちき): fire alarm
  • 報知器(ほうちき)が鳴(な)る: the alarm sounds
  • 報知器(ほうちき)を設置(せっち)する: to install an alarm

SIMILAR WORDS:

  • 警報(けいほう): warning, alert — the alert itself, not the device
  • 感知器(かんちき): sensor, detector — emphasizes detection rather than sounding an alarm
general
Added 2026.5.23 12:06
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