noun (n)

• a location marked by an intense competition and struggle for survival(noun.location)

  source: wordnet30
• a place where hoboes camp(noun.group)

  Synonym:
  hobo camp
  

  source: wordnet30
• an impenetrable equatorial forest(noun.group)

  source: wordnet30
• A dense growth of brushwood, grasses, reeds, vines, etc.; an almost impenetrable thicket of trees, canes, and reedy vegetation, as in India, Africa, Australia, and Brazil.(noun)

  source: webster1913