a wild land overgrown with dense vegetation, often nearly impenetrable, esp. tropical vegetation or a tropical rain forest.

a tract of such land.

a wilderness of dense overgrowth; a piece of swampy, thickset forestland.

any confused mass or agglomeration of objects; jumble

a jungle of wrecked automobiles.

something that baffles or perplexes; maze

a jungle of legal double-talk.

a scene of violence and struggle for survival

The neglected prison was a jungle for its inmates.

a place or situation of ruthless competition

the advertising jungle.

Slang . a hobo camp.

noun

boscage , bush , chaparral , forest , labyrinth , maze , morass , primeval forest , tangle , undergrowth , wasteland , web , wood , zoo , cat\'s cradle , entanglement , knot , mesh , skein , snarl , brake , brush , jumble , thicket , wilderness