Dictionary / Vocabulary / ２１日
にじゅういちにち
21st day of the month; 21 days
common word Also written 二十一日、二一日
来週の今日、すなわち７月２１日に君に返済いたします。
I'll pay you back a week from today, that is, on July 21.
彼の誕生日は、８月２１日です。
His birthday is August 21st.
２０日と２１日の午後を空けてありますので、この２日間のいずれかにグラント様とお会いしたいと考えています。
I have kept available the afternoon of the 20th and the 21st, and would like to know if Mr Grant will be available for a meeting on either of those two days.