絢爛[kenran] gorgeous
粲爛[sanran] brilliant
天真爛漫[tenshinranman] naivete
爛らかす[tadarakasu] to cause to be inflamed
爛れる[tadareru] to be sore

爛死[ranshi] burning to death
爛熟[ranjuku] overripeness
爛熳[ranman] glorious
糜爛[biran] inflammation
糜爛性[biransei] irritating

偏芯[henshin] eccentricity (in mechanics, electronics, etc.)
燈芯[toushin] (lamp) wick
帯芯[obishin] thick obi sash
摘芯[tekishin] thinning (buds and branches)
芯地[shinji] padding

替え芯[kaeshin] spare lead
鉛筆の芯[enpitsunoshin] lead of a pencil
硬の芯[kounoshin] hard pencil lead
林檎の芯[ringonoshin] core of an apple