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

その反面[sonohanmen] on the other hand
に反して[nihanshite] against
違反者[ihansha] violator (of a law)
違反[ihan] violation (of law)
一律減反[ichiritsugentan] reduction in area of rice under cultivation

陰性反応[inseihannou] negative reaction (in patient)
化学反応[kagakuhannou] chemical reaction
可逆反応[kagyakuhannou] reversible reaction
核反応[kakuhannou] nuclear reaction
核反応炉[kakuhannouro] nuclear reactor

叛く[somuku] to run counter to
叛する[hansuru] to be contrary to
叛乱[hanran] insurrection
叛乱軍[hanrangun] rebel army
叛乱者[hanransha] rebel

叛意[hani] spirit of rebellion
叛軍[hangun] rebel army
叛将[hanshou] rebel leader
叛心[hanshin] rebellious spirit
叛臣[hanshin] rebellious retainer

お大事に[odaijini] take care of yourself
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
伊勢大神宮[isedaijinguu] the Grand Shrines of Ise
伊勢大廟[isetaibyou] the Grand Shrines of Ise
偉大[idai] greatness

医科大学[ikadaigaku] medical school
医大[idai] medical university
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一大[ichidai] one large ...
一大事[ichidaiji] serious affair