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.