Tunnels underground Synonyms

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

Tunnels Synonyms

Underground Synonyms

TU abbreviation

TU is an abbreviation for Tunnels Underground
What does TU stand for?
TU stands for "Tunnels Underground"

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