異洗浄[isenjou] stomach pumping
浄化[jouka] purification
浄水[jousui] clean water
浄水器[jousuiki] water filter
浄水場[jousuijou] water purification (filtering) plant

浄土[joudo] Pure Land (esp. the Western Pure Land paradise of Amitabha)
浄瑠璃[joururi] type of dramatic recitation accompanied by a shamisen (associated with the Japanese puppet theater)
浄い[kiyoi] clear
浄め[kiyome] purification
浄める[kiyomeru] to purify

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