piling

English Thesaurus

1. a column of wood or steel or concrete that is driven into the ground to provide support for a structure (noun.artifact)

hypernym	:	column, pillar,
definition	:	(architecture) a tall vertical cylindrical structure standing upright and used to support a structure (noun.artifact)

hyponym	:	sheath pile, sheet pile, sheet piling,
definition	:	a pile in a row of piles driven side by side to retain earth or prevent seepage (noun.artifact)