Underground main 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 Main
What does UM stand for?
UM stands for "Underground Main"

Main replaced

Definitions for Main


  • (adjective) coming before all others in importance
  • (noun) muscular strength
  • (noun) one of the great divisions of land on the globe or the main part of such a division