A thesaurus is a book that lists words grouped together according to similarity of meaning (containing synonyms and sometimes antonyms), in contrast to a dictionary, which contains definitions and pronunciations.
Thesaurus view is a hierarchical tree structure of SKOS (Simple Knowledge Organization System) folders. SKOS concepts are linked many to many, but are represented as a tree structure.
A document, folder or mail can be linked with many SKOS folders at the same time. Each time some SKOS folder is selected, all related documents, folder or mails will be displayed in the file browser panel. All the major document,m folder or mail functionalities are available from this view.