一心不乱[isshinfuran] wholeheartedly
淫乱[inran] debauched
潰乱[kairan] corruption (of order, customs, etc.)
快刀乱麻[kaitouranma] solving a problem swiftly and skillfully
怪力乱神[kairyokuranshin] supernatural things

外乱[gairan] noise (interference)
狂乱[kyouran] fury
胡乱[uron] suspicious looking
混乱[konran] disorder
咲乱れる[sakimidareru] to bloom in profusion

遺髪[ihatsu] hair of the deceased
一髪[ippatsu] hair
下げ髪[sagegami] pigtail
間一髪[kanippatsu] hair's breadth
間一髪のところ[kanippatsunotokoro] close call

間一髪を入れず[kanippatsuwoirezu] in a flash
危機一髪[kikiippatsu] by a hair's breadth
共白髪[tomoshiraga] growing old together (a couple)
襟髪[erigami] scruff of neck
金髪[kinpatsu] blond hair