Underground drills 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

UD abbreviation

UD is an abbreviation for Underground Drills

What does UD stand for?

UD stands for "Underground Drills"

Drills replaced

underground movement

underground work

underground drill

underground labour