Underground dinosaur 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

UD abbreviation

UD is an abbreviation for Underground Dinosaur
What does UD stand for?
UD stands for "Underground Dinosaur"

Dinosaur replaced

Definitions for Dinosaur


  • (noun) one that has passed the peak of effectiveness or popularity
  • (noun) something or someone that is unusually large and powerful
  • (noun) any of numerous extinct terrestrial reptiles of the Mesozoic era