Underground passageways Synonyms

We can't find synonyms for the phrase "Underground passageways", but we have synonyms for terms, you can combine them.

Underground Synonyms

Passageways Synonyms

UP abbreviation

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

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