Underground compound 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 Compound


  • (adjective) made from the joining of two or more parts or elements
  • (noun) a distinct entity formed by the combining of two or more different things
  • (verb) to make greater in size, amount, or number