Underground fissure 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

alternative opening

UF abbreviation

UF is an abbreviation for Underground Fissure

What does UF stand for?

UF stands for "Underground Fissure"

Fissure replaced

underground chasm

underground hole

underground rift

Definitions for Fissure

(noun) an irregular usually narrow break in a surface created by pressure
(noun) a long narrow depression in a surface
(noun) a long narrow opening