Question

what is the meaning of the iodiom red letter day​

Answer 1

Answer:

A red-letter day is a day when something very important or exciting happens. ... Note: In the past, important feast days and saints' days were printed in red in some calendars.

Answer 2

Answer:

A red letter day (sometimes hyphenated as red-letter day or called scarlet day in academia) is any day of special significance or opportunity.... Many calendars still indicate special dates, festivals and holidays in red instead of black.

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