Underground excavation 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

Definitions for Excavation


  • (noun) the act of digging
  • (noun) a hole in the ground made by excavating
  • (noun) the act of extracting ores or coal etc from the earth