Dust is simply fine bits of matter that are capable of floating in the air.

"I could take in a fine bit here over two or three days," he told Mat.

Turn over and you'll see her face-a fine bit of female stuff.

I can now post this fine bit of comedy into alt.quotations with an easy heart!

And when the walnuts inside it flew out, that was a fine bit of theatrical whimsy.

The spoken language is merely the tonal background to a fine bit of acting.

And a fine bit of wood, handsomely polished, too!

"Not that yours isn't a fine bit of work," the smith went on.

"This is going' to take a fine bit of timin'."

But I can see a fine bit of toe-tapping to that.