Then it sat down right in the middle of the floor with a loud thump.

The captain fell to the floor with a loud thump.

Suddenly he heard a loud thump from within the stable, then more.

He sat in his command chair with a loud thump.

Minutes later, the front legs of the chair hit the floor with a loud thump.

I closed the door with a loud thump and turned.

I went over a big bump a while back and heard a loud thump.

Both chair legs returned to the floor with a loud thump.

He had turned his head, as if to speak to her, when there was a loud thump on the roof of the stock car.

As Tom stared at him, he heard a loud thump.