Underground machine 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 Machine
What does UM stand for?
UM stands for "Underground Machine"

Machine replaced

Definitions for Machine


  • (noun) a device that changes energy into mechanical motion
  • (noun) a self -propelled passenger vehicle on four wheels
  • (noun) any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks