What is another word for dark cloud?
Pronunciation: [dˈɑːk klˈa͡ʊd] (IPA) 
There are many synonyms that can be used to describe a "dark cloud." One option is "storm cloud," which suggests an impending storm or bad weather. Another option is "gloom cloud," which implies a feeling of sadness or despair. "Menacing cloud" or "ominous cloud" both suggest a looming threat or danger. "Overcast sky" is a more neutral option that simply describes a sky filled with clouds, while "ashen cloud" or "smoke cloud" could be used to describe the aftermath of a disaster. Ultimately, the synonym chosen would depend on the context and tone of the description.
