火燵掛布[kotatsugake] cover for kotatsu
火燵布団[kotatsubuton] cover for kotatsu
引火[inka] catching fire
引火温度[inkaondo] flash temperature
引火点[inkaten] flash point

曳火弾[eikadan] tracer bullet
煙火[enka] smoke and fumes (e.g. from cooking)
遠火[toobi] distant fire
下火[shitabi] burning low
下火になる[shitabininaru] to be under control

偉烈[iretsu] great achievement
苛烈[karetsu] severe
強烈[kyouretsu] strong
劇烈[gekiretsu] violence
激烈[gekiretsu] violent

酷烈[kokuretsu] severity
鮮烈[senretsu] vivid
壮烈[souretsu] heroic
痛烈[tsuuretsu] severe
熱烈[netsuretsu] ardent