御呪い[omajinai] good luck charm
呪い[noroi] curse
呪い[majinai] charm
呪う[norou] to curse
呪禁[jugon] vanquishing monsters, spirits, etc. with charms

呪術[jujutsu] magic
呪縛[jubaku] curse
呪文[jumon] spell
呪物[jubutsu] fetish
呪物崇拝[jubutsusuuhai] fetishism

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

光磁気[hikarijiki] magneto-optical
磁化[jika] magnetization
磁界[jikai] magnetic field
磁器[jiki] porcelain (esp. hard-paste porcelain)
磁気[jiki] magnetism

磁気インク[jikiinku] magnetic ink
磁気カード[jikikaado] magnetic card
磁気ディスク[jikidisuku] magnetic disk
磁気共鳴画像[jikikyoumeigazou] magnetic resonance imaging
磁気浮上[jikifujou] maglev