red-letter daynoun [ C usually singular ]
uk/ˌredˈlet.ə ˌdeɪ/us/ˌredˈlet̬.ɚ ˌdeɪ/a special, happy, and important day that you will always remember:
The day I first set foot in America was a red-letter day for me.
Thesaurus: synonyms and related words
Turning points & deciding moments
- be at a crossroads idiom
- boiling point
- breakthrough
- brink
- climax
- coming of age
- crunch
- defining moment
- edge
- if/when it comes to the crunch idiom
- landmark
- make-or-break
- milestone
- road
- road to Damascus idiom
- the moment of truth idiom
- turning point
- U-turn
- volte-face
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Celebrations, parties & special occasions