English noun: substructure
|1.||substructure (artifact) the basic structure or features of a system or organization|
|2.||substructure (artifact) lowest support of a structure|
|Samples||It was built on a base of solid rock.|
He stood at the foot of the tower.
|Synonyms||base, foot, foundation, fundament, groundwork, understructure|
|Narrower (hyponym)||bed, raft foundation|
|Part meronym||construction, structure|