OpenThesaurus is a multilingual thesaurus project built in open collaboration by volunteers. Its data is freely available as open content. It is known for its usage in the applications OpenOffice.org, LibreOffice, KWord, Lyx, and Apple Dictionary. The database takes words that are associated with at least one meaning. Apart from synonyms, it also contains some taxonomic relations. There is a German, a Dutch, a Norwegian, a Polish, a Portuguese, a Slovak, a Slovenian, a Spanish and a Greek version available. The German version has over 280,000 synonyms. More information...
According to PR-model, openthesaurus.de is ranked 128,793rd in multilingual Wikipedia, in particular this website is ranked 22,030th in German Wikipedia.
The website is placed before twinning.org.uk and after bisco.or.kr in the BestRef global ranking of the most important sources of Wikipedia.