Underground organ 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

UO abbreviation

UO is an abbreviation for Underground Organ
What does UO stand for?
UO stands for "Underground Organ"

Organ replaced

Definitions for Organ


  • (noun) a publication that appears at regular intervals
  • (noun) something used to achieve an end
  • (noun) a fully differentiated structural and functional unit in an animal that is specialized for some particular function