Underground motorways Synonyms

We can't find synonyms for the phrase "Underground motorways", but we have synonyms for terms, you can combine them.

Underground Synonyms

Motorways Synonyms

UM abbreviation

UM is an abbreviation for Underground Motorways
What does UM stand for?
UM stands for "Underground Motorways"

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