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.)

鴉片窟[ahenkutsu] opium den
仙窟[senkutsu] enchanted cave
巣窟[soukutsu] den
洞窟[doukutsu] cave
貧民窟[hinminkutsu] slums

魔窟[makutsu] den of thieves
偏窟[henkutsu] eccentricity
理窟[rikutsu] theory
巌窟[gankutsu] cave