Choose the most appropriate option that best expresses the meaning of the following idiom:
A Red Letter Day.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A memorable day in one's life.
A red-letter day means a very happy and important day that one recalls with joy for a long time. Old church calendars marked feast days and holy days in red ink, so such days stood out from ordinary ones.
Example: The day she got her first job was a red-letter day for the whole family.