thicket

noun3

1. •
   A dense, but generally small, growth of shrubs, bushes or small trees; a copse.
2. •
   (figurative) A dense aggregation of other things, concrete or abstract.

   • He had to complete a thicket of paperwork before he was allowed to join the company.
3. •
   (figurative) The collection of many small linked files created when a document is saved in HTML format by some word processors and web site creation software.