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English definition of “red-letter day”

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red-letter day

noun [C usually singular] uk   /ˌredˈlet.əˌdeɪ/ us    /-ˈlet̬.ɚ-/
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.
Translations of “red-letter day”
in Chinese (Traditional) 值得紀念的日子, 有特殊意義的日子, 喜慶日…
in Chinese (Simplified) 值得纪念的日子, 有特殊意义的日子, 喜庆日…
(Definition of red-letter day from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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