Underground metropolis Synonyms

Underground replaced

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

Synonyms for phrase

UM abbreviation

UM is an abbreviation for Underground Metropolis
What does UM stand for?
UM stands for "Underground Metropolis"

Metropolis replaced

Definitions for Metropolis


  • (noun) a thickly settled, highly populated area
  • (noun) a large and densely populated urban area ; may include several independent administrative districts
  • (noun) people living in a large densely populated municipality