Piling

n.	1.	The act of heaping up.
	2.	(Iron Manuf.) The process of building up, heating, and working, fagots, or piles, to form bars, etc.
	1.	A series of piles; piles considered collectively; as, the piling of a bridge. Pug piling sheet piles connected together at the edges by dovetailed tongues and grooves. Sheet piling a series of piles made of planks or half logs driven edge to edge, - used to form the walls of cofferdams, etc.

Noun

1.

piling - a column of wood or steel or concrete that is driven into the ground to provide support for a structure Synonyms: spile, stilt, pile

column, pile, pillar, sheath pile, sheet pile, sheet piling, spile, stilt