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black dog

American  

noun

Informal.
  1. melancholy; despondency; the blues.

    The black dog is over him.


black dog British  

noun

  1. informal depression or melancholy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of black dog

First recorded in 1700–10

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.

And the Barghest was a spectre who took the form of a bear or a black dog with large, flaming eyes as big as saucers.

From BBC • Dec. 25, 2024

The video shows a man dressed in a white tank top and jeans with a black dog by his side walking up to Blueface while a boxing trainer steps between them.

From Los Angeles Times • Aug. 23, 2023

When the black dog, as Winston Churchill called his depression, nipped at his heels, Buchwald turned to humor, “the greatest defense in the world.”

From Washington Post • Sep. 9, 2022

My day starts with a couple of dogs — a small black dog and sometimes a large white one.

From New York Times • Apr. 21, 2022

Both Daniel and Alicia knew about the black dog.

From "Chronicles of a Lizard Nobody" by Patrick Ness

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