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)

御好み焼[okonomiyaki] savoury pancake with various ingredients
恰好付ける[kakkoutsukeru] to affect a stylish air
好き者[sukimono] dilettante
愛好[aikou] love
愛好家[aikouka] amateur

愛好者[aikousha] enthusiast
横好き[yokozuki] being crazy about something, but not be good at it
へたの横好き[hetanoyokozuki] being crazy about something but being very bad at it
格好の良い[kakkounoii] attractive
格好の悪い[kakkounowarui] unattractive

懐旧[kaikyuu] recalling the old days
旧ソ連[kyuusoren] former Soviet Union
旧悪[kyuuaku] past misdeeds
旧衣[kyuui] worn-out clothes
旧詠[kyuuei] ancient poems

旧怨[kyuuen] old grudge
旧縁[kyuuen] old relationship
旧恩[kyuuon] old favors
旧仮名遣[kyuukanazukai] former (i.e. before the post-WWII reforms) kana usage in writing the readings of kanji