奥床しい[okuyukashii] refined
温床[onshou] hotbed
川床[kawadoko] riverbed
火床[hidoko] fire bed
臥床[gashou] confined to bed

岩床[ganshou] bedrock
起床[kishou] rising
胡床[agura] sitting cross-legged (i.e. Indian style)
胡床をかく[agurawokaku] to sit cross-legged
鉱床[koushou] ore deposit

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