兇悍[kyoukan] heinousness
元兇[gankyou] ringleader
兇悪[kyouaku] atrocious
兇漢[kyoukan] villain
兇器[kyouki] dangerous weapon

兇具[kyougu] dangerous weapon
兇行[kyoukou] violence
兇手[kyoushu] assassin
兇状[kyoujou] crime

アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
圧搾器[assakuki] compression
圧力調整器[atsuryokuchouseiki] pressure regulator
安全器[anzenki] safety device
安定器[anteiki] stabilizer

医療器械[iryoukikai] medical appliances
育雛器[ikusuuki] breeder
化学兵器[kagakuheiki] chemical weapons
化学兵器禁止条約[kagakuheikikinshijouyaku] chemical weapons ban treaty
加減抵抗器[kagenteikouki] rheostat