Tough underworld Synonyms

Definitions for Tough

(adjective) not easily chewed
(adjective) able to withstand hardship, strain, or exposure
(adjective) difficult to endure

TU abbreviation

TU is an abbreviation for Tough Underworld

What does TU stand for?

TU stands for "Tough Underworld"

Underworld replaced

tough difficulty

Definitions for Underworld

(noun) a social sphere that exists outside of the mainstream
(noun) ( religion ) the world of the dead
(noun) the criminal class