Underground monster 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 Monster
What does UM stand for?
UM stands for "Underground Monster"

Definitions for Monster


  • (adjective) unusually large
  • (noun) a strange or horrible and often frightening creature
  • (noun) a person , thing, or event that is far from normal