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

燐寸[macchi] match (contest)
燐酸[rinsan] phosphoric acid (H3PO4)
黄燐[ourin] yellow (white) phosphorus
燐灰石[rinkaiseki] apatite
燐火[rinka] phosphorous light

燐光[rinkou] phosphorescence
燐鉱[rinkou] phosphoric ore
燐酸肥料[rinsanhiryou] phosphate fertilizer
亜燐酸[arinsan] phosphonic acid (H3PO3)