化粧煉瓦[keshourenga] ornamental tile
試煉[shiren] test
洗煉[senren] polish
舗装煉瓦[hosourenga] paving brick
煉瓦[renga] brick

煉り上げる[neriageru] to knead well
煉る[neru] to knead
煉乳[rennyuu] condensed milk
修煉[shuuren] training
精煉[seiren] refining (metals)

下獄[gegoku] being sent to prison
仮出獄[karishutsugoku] parole
監獄[kangoku] prison
疑獄[gigoku] scandal
あり地獄[arijigoku] ant lion larva

刑獄[keigoku] jail
獄衣[gokui] prison uniform
獄死[gokushi] death in jail
獄舎[gokusha] prison
獄中[gokuchuu] during imprisonment