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black-letter day

[ blak-let-er ]
/ ˈblækˌlɛt ər /
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noun
an unlucky or tragic day.
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Origin of black-letter day

First recorded in 1750–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use black-letter day in a sentence

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