red-letter
Americanadjective
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marked by red letters, as festival days in the church calendar.
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memorable; especially important or happy.
a red-letter day in his life.
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(of a Bible) having the quoted words of Jesus appear in red type.
a red-letter edition;
the red-letter New Testament presented at her baptism.
Etymology
Origin of red-letter
First recorded in 1660–70
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This was a red-letter day in the history of Liverpool's famous old stadium as the new top deck of the Anfield Road Stand was in use for the first time.
From BBC • Dec. 17, 2023
Could Feb. 15 be a red-letter day for Nikki Haley?
From Washington Times • Feb. 7, 2023
Saturday was a red-letter day for the history of art in Southern California.
From Los Angeles Times • Jun. 21, 2022
There have been plenty of dramatic red-letter days in Brontë scholarship of late.
From Seattle Times • Mar. 30, 2022
But it had been a red-letter day anyhow, the main day of the year for me, better than the 4th of July.
From "The Teacher’s Funeral" by Richard Peck
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.