Information on the distribution licence is available at the web site. The MultiWordNet database can be freely browsed through its on-line interface, and is distributed both for research and commercial use. The current version includes around 44,400 Italian lemmas organized into 35,400 synsets which are aligned, whenever possible, with their corresponding English Princeton synsets.

MultiWordNet, developed by Luisa Bentivogli and others is a multilingual lexical database, developed at ITC-irst, in which the Italian WordNet is strictly aligned with Princeton WordNet 1.6.

The Global WordNet Association is a free, public and non-commercial organization that provides a platform for discussing, sharing and connecting wordnets for all languages in the world.

The current version, which is freely available under a Creative Commons license, comprises a network of more than 3 million synsets and 70 millions semantic relations, and it can also be browsed through an on-line interface.

English Wikipedia pages and WordNet synsets) are provided on the basis of Wikipedia cross-language links and the output of a machine translations system. BabelNet provides a wide-coverage knowledge repository in which WordNet is automatically aligned to the English Wikipedia, and lexicalizations for its concepts (i.e. BabelNet is a very large multilingual lexical database, developed by Roberto Navigli , Simone Paolo Ponzetto and others at the University of Rome 'La Sapienza' in the context of the ERC Starting Grant MultiJEDI.Mappings - sense key and/or synset mappings between different versions of WordNet databases.Extensions - expand WordNet's features or integrate it into larger systems.Local Interfaces - (APIs) - require files to be downloaded.

Web Interfaces - access WordNet over a network.Semantic networks - in languages other than English.Xuhua Chen has written An English Dictionary with AB Index and Frequency which uses PAPC (per article per count) basis to count word frequency and two digit numbers to show the frequency rank.

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