piling

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The act of driving piles.
• noun Piles considered as a group.
• noun A structure composed of piles.

from The Century Dictionary.

• noun Logs ready to be made into piles, or from which piles are made.
• noun See pile, verb
• noun In leather manufacturing, a slow inward sweating of the leather.
• noun In engineering, the operation of placing and driving piles in position.
• noun Piles collectively; pilework.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of heaping up.
• noun (Iron Manuf.) The process of building up, heating, and working, fagots, or piles, to form bars, etc.
• noun A series of piles; piles considered collectively.
• noun sheet piles connected together at the edges by dovetailed tongues and grooves.
• noun a series of piles made of planks or half logs driven edge to edge, -- used to form the walls of cofferdams, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A structural support comprised of a length of wood, steel, or other construction material.
• verb Present participle of pile.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a column of wood or steel or concrete that is driven into the ground to provide support for a structure