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)

干渉[kanshou] interference
交渉[koushou] negotiations
交渉委員[koushouiin] negotiating committeemen
交渉員[koushouin] negotiators
渉外[shougai] public relations

渉外部[shougaibu] liaison department
徒渉[toshou] wade across
渉る[wataru] to cross over
内交渉[uchikoushou] preliminary negotiations
内政干渉[naiseikanshou] intervention