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

くつくつ法師[kutsukutsuboushi] Meimuna opalifera (species of cicada)
つくつく法師[tsukutsukuboushi] Meimuna opalifera (species of cicada)
エライザ法[eraizahou] enzyme-linked immunoSorbent assay (virus detection method)
ケーソン工法[keesonkouhou] caisson method
シールド工法[shiirudokouhou] shield method

モンテカルロ法[montekarurohou] Monte Carlo method
悪法[akuhou] bad law
暗号化手法[angoukashuhou] cryptography
暗号手法[angoushuhou] cryptography
違法[ihou] illegal

螺子回し[nejimawashi] screwdriver
雌螺子[meneji] female screw
駄法螺[dabora] big talk
二重螺旋[nijuurasen] double helix (structure of DNA)
螺子山[nejiyama] screw thread

螺旋[neji] screw
螺旋[rasen] spiral
蠑螺[sazae] turban shell (any mollusc of the family Turbinidae, esp. the horned turban, Turbo cornutus)
吹螺[horagai] conch (Charonia tritonis)
細螺[kisago] periwinkle