The door closed again with a solid thud, but no snick from the bolt.

I walked in, and the door closed behind me with the most solid thud I ever heard.

The fist made a solid thud as it hit Conan's stomach.

There was a murmured question - followed by a solid thud.

Each huge foot hit the ground with a solid thud.

But when he kicked the thing, it gave back a reassuring solid thud.

Something hit the ground, the solid thud of a body falling.

Each crisp punch hit a mitt with a solid thud.

And they rolled off the sofa, hit the floor with a solid thud.

The door, as he pulled it to behind him, shut with such a solid and final thud that a small shiver ran over her.