It's been hanging over everything like a big black cloud.

It seemed to take forever, like a big black cloud over our heads.

A big cloud had rolled across the face of the sun.

Just a few big white clouds to block the sun and cool things off so I can read.

There was no telling what a big cloud of that would do.

Richard hadn't realized how big clouds really were, when viewed this close.

I am not taking the blame for any big black clouds.

No, it was a big thick cloud getting ready to rain on them.

Still, today, those were clouds no bigger than a man's hand.

He comes to the secret place that looks like a big cloud on the outside.