Index of English words, starting with "su"

(1) - Substratum (n.) The permanent subject of qualities or cause of phenomena; substance.
(2) - Substratum (n.) That which is laid or spread under; that which underlies something, as a layer of earth lying under another; specifically (Agric.), the subsoil.

(1) - Substruction (n.) Underbuilding; the foundation, or any preliminary structure intended to raise the lower floor or basement of a building above the natural level of the ground.