幻を追う[maboroshiwoou] to pursue an illusion
幻影[genei] phantom
幻覚[genkaku] hallucination
幻覚剤[genkakuzai] hallucinogen
幻姿[genshi] apparition

幻視[genshi] visual hallucination
幻想[gensou] illusions
幻想劇[gensougeki] non-realistic drama
幻像[genzou] phantom

濾す[kosu] to filter
濾過[roka] filtration
濾紙[roshi] filter paper
圧濾器[atsuroki] filter press
濾過器[rokaki] strainer

水濾[mizukoshi] water filter
濾液[roeki] filtrate
濾水[rosui] filtered water
濾水タンク[rosuitanku] filter bed
濾水器[rosuiki] water filter