Secret underground Synonyms

Secret replaced

Definitions for Secret


  • (adjective) undertaken or done so as to escape being observed or known by others
  • (adjective) working on missions in which one's objectives, activities, or true identity are not publicly revealed
  • (adjective) screened or sequestered from view

Synonyms for phrase

SU abbreviation

SU is an abbreviation for Secret Underground
What does SU stand for?
SU stands for "Secret Underground"

Underground replaced

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