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

苦悩[kunou] suffering
子煩悩[kobonnou] indulgent
思い悩む[omoinayamu] to worry
伸び悩む[nobinayamu] to be sluggish (business)
頭を悩ます[atamawonayamasu] to rack one's brains

悩ましい[nayamashii] seductive
悩ます[nayamasu] to afflict
悩み[nayami] trouble
悩みごと[nayamigoto] something causing worry
悩む[nayamu] to be worried

煩う[wazurau] to be ill
子煩悩[kobonnou] indulgent
煩さい[urusai] noisy
煩わしい[wazurawashii] troublesome
煩わす[wazurawasu] to trouble

煩雑[hanzatsu] complex
煩悩[bonnou] worldly desires
煩悶[hanmon] worry
恋煩い[koiwazurai] lovesickness
煩忙[hanbou] pressure of business