アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
データ交換[deetakoukan] data exchange
パリティ変換[paritihenkan] parity transformation (physics)
メール交換[meerukoukan] exchange of letters
意見交換[ikenkoukan] exchange of ideas

引換て[hikikaete] on the contrary
下位互換性[kaigokansei] downward compatibility
かな漢字変換[kanakanjihenkan] kana-kanji conversion (on a computer, etc.)
可換群[kakangun] Abelian group
賀詞交換[gashikoukan] New Year greetings (parties)

１羽[ichiwa] one (bird)
からすの濡れ羽色[karasunonurebairo] glossy black (hair)
烏羽玉[ubatama] jet black
烏羽色[karasubairo] glossy black
羽子[hane] feather

羽子[hago] shuttlecock
羽ばたく[habataku] to flap (wings)
羽衣[hagoromo] angel's raiment
羽音[haoto] sound of flapping wings (of a bird)
羽化[uka] emergence (of insects)