Underground pass 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 Pass
What does UP stand for?
UP stands for "Underground Pass"

Pass replaced

Definitions for Pass


  • (noun) a narrow opening between hillsides or mountains that can be used for passage
  • (noun) a passage cleared for public vehicular travel
  • (noun) a small sheet of plastic, paper, or paperboard showing that the bearer has a claim to something (as admittance )