Underground structure Synonyms

Underground replaced

secret structure

unconventional structure

unusual structure

unknown structure

mysterious structure

deep structure

unorthodox structure

low structure

Definitions for Underground

(adjective) undertaken or done so as to escape being observed or known by others
(adjective) being, situated, or operating beneath the surface of the earth
(noun) a secret organization in a conquered country fighting against enemy forces

US abbreviation

US is an abbreviation for Underground Structure

What does US stand for?

US stands for "Underground Structure"

Structure replaced

underground complex

underground network

underground system

underground organization

underground building

underground form

underground construction

underground house

Definitions for Structure

(noun) something built as a dwelling , shelter, or place for human activity
(noun) something put together by arranging or connecting an array of parts
(noun) the arrangement of parts that gives something its basic form