İngilizce dilinde "red letter day" tanımı

Noun

1. A day marked in red on calendars; a church feast day.

2. A particularly significant day; a day of personal or sectarian celebration.

   • Monday was a red letter day for her. She accomplished a lot and had fun doing it.
   • We saw losses for days in a row, but Black Tuesday was the worst red letter day of them all.