понор

Noun

 * 1)  ponor; sinkhole, swallow hole a pit or a cavern within the ground where water sinks underground

Noun

 * 1)  ponor; sinkhole, swallow hole
 * 2) abyss, chasm, precipice
 * 3)  trouble, disaster, precipice
 * 4)  chasm
 * 1)  chasm

Noun

 * 1)  ponor
 * 2) abyss
 * 3) precipice
 * 1) precipice

Noun

 * 1) abyss