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)

円借款[enshakkan] international yen loan
仮定款[kariteikan] provisional articles
交款[koukan] exchange of courtesies (cordialities)
借款[shakkan] (international) loan
長期借款[choukishakkan] long-term loan

定款[teikan] articles of incorporation
款冬[fuki] giant butterbur (Petasites japonicus)
約款[yakkan] agreement
落款[rakkan] sign and seal
款冬[yamabuki] kerria (Kerria japonica)