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Red letter day

Idiomatic Phrase
Pronunciation

Understanding ARPABET Pronunciation

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The pronunciation guide uses the ARPABET phonetic system—the same system used in speech recognition and text-to-speech applications.

Vowel Examples:
AE1 = cat, bat
EH1 = bed, head
IY1 = see, me
OW1 = go, boat
UW1 = boot, do
Stress Numbers:
0 = no stress (unstressed)
1 = primary stress (loud)
2 = secondary stress (medium)
Example:
AH0 TH IY1 N AH0
= a-THEE-na (Athena)

The stressed syllable (marked with 1) is pronounced louder and clearer than others.

Quick Definition

A particularly memorable, significant, or happy day; historical reference to calendar days marked in red for saints' festivals, now denotes any occasion worth special celebration.

Detailed Definition
Red letter day means a memorable, fortunate, or celebratory day of special importance. The phrase comes from calendars in which feast days or holy days were marked in red. In poetry, it can evoke anniversaries, victories, births, reunions, discoveries, or personal turning points. Its historical connection to calendars gives it ritual and commemorative weight. A poet may use it joyfully, nostalgically, or ironically when a supposedly glorious day is shadowed by loss or later knowledge.
Example
Example in poetry:
A memory poem might call the day the first book arrived a red letter day; In a love lyric, a first meeting becomes a red letter day written in the heart; The phrase means a specially important or happy day; A poet can use it for personal milestones.
Additional Notes
A red-letter day is a memorable, fortunate, or festive day, from calendars where important feast days were marked in red. In poetry, it can connect private happiness with ritual time, anniversary, and communal marking. The colour red suggests celebration, importance, love, blood, or intensity. Students should ask what makes the day worthy of inscription. The phrase pairs well with calendars, saints’ days, letters, birthdays, and events that alter memory.
Also Known As
special day
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