also: かっき · ほけ
fire; heat of fire; trace of fire
Refers to fire itself, its heat, or any sign of fire. Often used in warnings or safety contexts.
In places where open flames are strictly prohibited, you cannot even use a lighter.
force of a fire; intensity of flames
Only with reading かき / かっき
Emphasizes the power or intensity of a fire, often in contexts like firefighting or describing a blaze.
source of ignition; cause of a fire
Refers to anything that can start a fire, such as a lighter, match, or spark. Common in safety regulations.
Please do not place anything that could cause a fire nearby.
It's hard to keep warm in a room without any source of fire.
The force of the fire was so strong that even the firefighters couldn't get close.
This machine must be kept away from any source of ignition.
Standard kanji spelling; the reading かき is the most common.
Alternate reading, less common but still used.
Obsolete reading; not used in modern Japanese.
Compound of 火 (fire) and 気 (spirit, energy). The reading かき is the standard on'yomi combination; かっき is a variant with gemination, and ほけ is an obsolete kun'yomi-based reading.