Underground passageway 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

UP abbreviation

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

Passageway replaced

Definitions for Passageway


  • (noun) a typically long narrow way connecting parts of a building
  • (noun) a path or channel or duct through or along which something may pass
  • (noun) a passage between rooms or between buildings