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)

吾亦紅[waremokou] burnet
口紅[kuchibeni] lipstick
紅焔[kouen] red flame
紅花[benibana] safflower
紅海[koukai] Red Sea

紅冠鳥[koukanchou] cardinal (bird) (Cardinalis cardinalis)
紅顔[kougan] rosy cheeks
紅唇[koushin] red lips
紅藻[kousou] red algae
紅茶[koucha] black tea