Outpost underground Synonyms

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

OU abbreviation

OU is an abbreviation for Outpost Underground
What does OU stand for?
OU stands for "Outpost Underground"

Definitions for Outpost


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