Meaning of the word styx in English

What does styx mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

styx

US /stɪks/
UK /stɪks/

Noun

(in Greek mythology) a river forming the boundary between Earth and the Underworld

Example:
In ancient Greek myths, souls of the dead were ferried across the River Styx.
Charon, the ferryman, would take the deceased across the Styx to the Underworld.