英吉利[igirisu] Great Britain
吉利支丹[kirishitan] early Japanese Christianity (from the later Muromachi period)
成吉思汗[jingisukan] Japanese mutton and vegetable dish
吉凶[kikkyou] sunshine and shadow
吉祥[kisshou] lucky omen

吉徴[kicchou] lucky omen
吉報[kippou] good news
吉備団子[kibidango] sweet dumpling made with mochi flour and (sometimes) millet flour (famous product of Okayama)
吉丁虫[tamamushi] jewel beetle
石部金吉[ishibekinkichi] man of incorruptible character

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