Wiktionary is a multilingual, web-based, freely available dictionary,
thesaurus and phrase book, designed as the lexical companion to Wikipedia.
Lately, it has been recognized as a promising lexical semantic resource
for natural language processing applications.
JWKTL is a Java-based API that enables efficient programmatic access to
the information contained in the English and German language editions of
* part of speech
* word language
* internal and external links
* related words
* antonyms, holonyms, hypernyms, hyponyms, meronyms, synonyms,
troponyms, "see also" terms, characteristic word combinations,
coordinate terms, derived terms, descendants, etymologically related terms
Torsten Zesch, Christof Müller, Iryna Gurevych: Extracting Lexical
Semantic Knowledge from Wikipedia and Wiktionary . In Proceedings of the
Conference on Language Resources and Evaluation (LREC). European
Language Resources Association, 2008.