Definition: A "storm cloud" is a dark, thick cloud that usually means a storm is coming. These clouds can bring rain, thunder, and lightning.
Idiom: "Under a cloud" means to be in a difficult situation or to be suspected of something bad.
Phrasal Verb: "Cloud over" means to become cloudy or to overshadow something, often used in a metaphorical sense.
"Storm cloud" is a useful term that describes both a physical weather phenomenon and can also symbolize trouble or impending issues in life.