御化け[obake] goblin
御化け屋敷[obakeyashiki] haunted house
胡麻化し[gomakashi] hanky-panky
イオン化[ionka] ionization
カスタム化[kasutamuka] customization

コンピュータ化[konpyuutaka] computerization
シアン化合物[shiankagoubutsu] cyanide
シアン化物[shiankabutsu] cyanide
スリム化[surimuka] thinning
パーソナル化[paasonaruka] personalization

アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
パリティ変換[paritihenkan] parity transformation (physics)
異変[ihen] unusual phenomenon
移り変り[utsurikawari] change (e.g. season)
一定不変[itteifuhen] invariable

一風変った[ippuukawatta] eccentric
一変[ippen] complete change
黄変米[ouhenmai] spoiled rice
化学変化[kagakuhenka] chemical change
かな漢字変換[kanakanjihenkan] kana-kanji conversion (on a computer, etc.)

妖怪[youkai] ghost
妖術[youjutsu] black magic
妖術者[youjutsusha] magician
妖精[yousei] fairy
妖魔[youma] ghost

妖しい[ayashii] suspicious
妖艶[youen] fascinating
面妖[menyou] weird
妖女[youjo] enchantress
妖気[youki] ghostly

奇怪しい[okashii] funny
怪しからん[keshikaran] outrageous
怪しげ[ayashige] questionable
怪しむ[ayashimu] to suspect
怪異[kaii] strangeness

怪我[kega] injury (to animate object)
怪我人[keganin] wounded or injured person
怪奇[kaiki] bizarre
怪傑[kaiketsu] man of extraordinary talent
怪死[kaishi] mysterious death