Underground prisoner Synonyms

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

UP abbreviation

UP is an abbreviation for Underground Prisoner
What does UP stand for?
UP stands for "Underground Prisoner"

Definitions for Prisoner


  • (noun) one that has been taken and held in confinement
  • (noun) a person who is confined; especially a prisoner of war