本ほん日じつほんじつCommon wordJLPTN3Freq.FrequencyTop 5,000Meanings1noun, adverbtoday; this dayFormal equivalent of 今日 (きょう). Used in announcements, business, news, and polite speech. Can function as a noun or adverb.本ほん日じつはお越こしいただきありがとうございます。Thank you for coming today.本ほん日じつの会かい議ぎは午ご後ご3時