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Red letter day Meaning in English

expression

RED LET-er DAY
red LET-uh day

Definition

A 'red letter day' is a very special or important day that you remember because something good or significant happened.

Usage & Nuances

This phrase is idiomatic and somewhat old-fashioned but still common in writing and speech. Used to mark occasions like weddings, graduations, or historic events. Not used for negative days.

Example Sentences

Graduation was a red letter day for my family.

basic

Winning the award was a red letter day in her life.

basic

Their wedding was a real red letter day.

basic

I marked the red letter day on my calendar so I wouldn't forget.

natural

Passing my driving test was a red letter day for me.

natural

It's not every day you get to meet the president—that was a real red letter day!

natural