本ほん月げつほんげつMeanings1noun, adverbthis monthFormal or written term for 'this month'; in casual speech 今月 (こんげつ) is more common.本ほん月げつの売うり上あげ目もく標ひょうは達たっ成せいできそうです。We are likely to achieve this month's sales target.本ほん月げつをもって閉へい店てんいたします。We will close at the end of this month.