expression
no open flame; fire prohibited; flammables!
A set phrase used on signs and warnings to indicate that fire, sparks, or ignition sources are strictly forbidden. Often seen in places with flammable materials.
ガソリンスタンドには「火気厳禁」の表示がある。
There is a 'No Open Flame' sign at the gas station.
この倉庫は火気厳禁です。
This warehouse is a no-fire zone.
Compound of 火気 (fire, flame) and 厳禁 (strict prohibition).