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)

遺精[isei] nocturnal emissions (of semen)
演算精度[enzanseido] operational precision
拡張倍精度[kakuchoubaiseido] extended double-precision
魚精[gyosei] milt
高精度[kouseido] high precision

射精[shasei] ejaculation
受精卵[juseiran] fertilized eggs
出精[shussei] diligence
出無精[debushou] stay at home
精しい[kuwashii] detailed