n.
Material used to refill an excavated area.
tr.v., -filled, -fill·ing, -fills.
To refill (an excavated area) with such material.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.