He was attempting to sound tough, but Mark knew better.

But then, trying to sound tough, in charge, he said, "Take what you want and get the hell out of here."

The piece often sounds tough; here it was spontaneous and easy.

Of course, Simon hadn't sounded too tough until it was explained.

So this is a great way to sound tough and sophisticated without actually committing yourself.

Jeffrey didn't understand his words, but he sounded tough and confident.

She sounded tough as nails, and had no accent at all.

He wanted to sound tough, but his voice scrambled right up into a high squeak.

She's trying to sound tough and brave, but it's a hollow act in these circumstances.

Then he lowered his squeaky voice, trying to sound tough.