Then there was a quake and a a loud roar.

There was a very loud roar from right behind us.

You don't have the equipment at the moment, and all you'd produce would be a loud roar.

But then a loud roar made them both cry out.

When he reached the last word, the pain stopped, and a loud roar sounded from before him.

With a loud roar he launched himself upon the younger man.

The shot was quickly followed by a loud roar of approval.

Behind them, a great many automatic weapons opened fire with a loud roar.

They heard a loud roar, and the ship started to take off.

A loud roar came from the automatic in his left hand.