隠密[onmitsu] privacy
過密[kamitsu] overcrowding
確率密度関数[kakuritsumitsudokansuu] probability density function
機密[kimitsu] secrecy
機密性[kimitsusei] confidentiality

機密保護[kimitsuhogo] security (e.g. data, password, etc.)
気密[kimitsu] airtight
気密室[kimitsushitsu] airtight chamber
緊密[kinmitsu] rigour
軍事秘密[gunjihimitsu] military secret

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

イスラム教徒[isuramukyouto] Muslim
基督教[kirisutokyou] Christianity
キリスト教徒[kirisutokyouto] Christians
ユダヤ教会堂[yudayakyoukaidou] synagogue
安全教育[anzenkyouiku] safety education

異教[ikyou] paganism
一神教[isshinkyou] monotheism
印度教[indokyou] Hinduism
遠隔教育[enkakukyouiku] distance learning
家教[kakyou] tutor