PILE n. 3 definitions
the earth, as at the bottom of a river, or in a harbor where the ground is soft, for the support of a building, a pier, or other superstructure, or to form a cofferdam, etc.
PILLAR n. 4 definitions
The general and popular term for a firm, upright, insulated support for a superstructure; a pier, column, or post; also, a column or shaft not supporting a superstructure, as one erected for a monument or an ornament. Jacob set a pillar upon her grave. Gen. xxxv. 20. The place . . . vast and proud, Supported by a hundr…