Underground castle 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 Castle


  • (noun) a structure or place from which one can resist attack
  • (noun) a large impressive residence
  • (noun) a large building formerly occupied by a ruler and fortified against attack