Underground key 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

UK abbreviation

UK is an abbreviation for Underground Key
What does UK stand for?
UK stands for "Underground Key"

Key replaced

Definitions for Key


  • (adjective) coming before all others in importance
  • (adjective) of the greatest possible importance
  • (noun) an explanatory list of the symbols on a map or chart