日本通 にほんつう Meanings Noun Japan hand (someone very knowledgeable about Japan) Kanji 日 day 本 origin. Read as ホン. 通 pass through. Read as ツウ. Words containing 日本通 日本通信販売協会 (にほんつうしんはんばいきょうかい) Japan Direct Marketing Association Jinuma: Japanese Dictionary · Word lists