電光 でんこう Meanings Noun lightning electric illumination; light from an electric source Kanji 電 electric. Read as デン. 光 light. Read as コウ. Words containing 電光 電光掲示板 (でんこうけいじばん) electric noticeboard 電光石火 (でんこうせっか) flash 電光ニュース (でんこうニュース) illuminated sign spelling out news items And 2 more. Jinuma: Japanese Dictionary · Word lists