ない交ぜにする[naimazenisuru] to blend (e.g. truth and lies)
データ交換[deetakoukan] data exchange
メール交換[meerukoukan] exchange of letters
リーダー交代[riidaakoutai] leadership change
意見交換[ikenkoukan] exchange of ideas

一方交通[ippoukoutsuu] one-way traffic
羽交絞め[hagaijime] pinioning
仮名交じり[kanamajiri] mixed writing (characters and kana)
仮名交じり文[kanamajiribun] mixed writing (characters and kana)
賀詞交換[gashikoukan] New Year greetings (parties)

お風呂に入る[ofuronihairu] to take a bath
鍬入れ式[kuwaireshiki] ground-breaking ceremony
塵入[gomiire] trashcan
キー入力[kiinyuuryoku] key (input)
ビジネススクール入学共通試験[bijinesusukuurunyuugakukyoutsuushiken] business school entrance test

メスを入れる[mesuwoireru] to operate
圧入[atsunyuu] indentation
移入[inyuu] importation
一寝入り[hitoneiri] nap
一入[hitoshio] still more

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