Underground machinery 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 Machinery
What does UM stand for?
UM stands for "Underground Machinery"

Machinery replaced

Definitions for Machinery


  • (noun) something used to achieve an end
  • (noun) machines or machine systems collectively
  • (noun) a system of means and activities whereby a social institution functions