A dense, but generally small, growth of shrubs, bushes or small trees; a copse.
A dense aggregation of other things, concrete or abstract.
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.
A dense collection of trees, usually one covering a relatively small area; usually smaller than a forest.
For chemical behavior purposes, trees in full leaf (coniferous or medium-dense deciduous forests).