Underground operation 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

UO abbreviation

UO is an abbreviation for Underground Operation
What does UO stand for?
UO stands for "Underground Operation"

Operation replaced

Definitions for Operation


  • (noun) a specific task with which a person or group is charged
  • (noun) a usually fixed or ordered series of actions or events leading to a result
  • (noun) the act or activity of looking after and making decisions about something