Underground interstate 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

Synonyms for phrase

UI abbreviation

UI is an abbreviation for Underground Interstate
What does UI stand for?
UI stands for "Underground Interstate"

Interstate replaced

Definitions for Interstate


  • (adjective) involving and relating to the mutual relations of states especially of the united States
  • (noun) one of the system of highways linking major cities in the 48 contiguous states of the United States