1A day designated by law as a national holiday for celebration or commemoration; companies and schools are usually closed.
来週の月曜日は祝日なので学校が休みだ。
Next Monday is a national holiday, so school is closed.
祝日と週末が続けば連休になる。
When a national holiday falls next to the weekend, it becomes a long holiday.
祝日にはコンビニも営業していることが多い。
Convenience stores are usually open even on national holidays.
カレンダーで今月の祝日を確認した。
I checked this month's holidays on the calendar.