JWKTL (Java-based Wiktionary Library) is an application programming interface for the free multilingual online dictionary Wiktionary. Wiktionary is collaboratively constructed by volunteers and continually growing. JWKTL enables efficient and structured access to the information encoded in the English, the German, and the Russian Wiktionary language editions, including sense definitions, part of speech tags, etymology, example sentences, translations, semantic relations, and many other lexical information types. The API was first described in an LREC 2008 paper. The Russian JWKTL parser is based on Wikokit.

Visit our GitHub project site for download information and documentation.

License and Availability

The latest version of JWKTL is available via Maven Central. If you use Maven as your build tool, then you can add JWKTL as a dependency in your pom.xml file:


JWKTL is available as open source software under the Apache License 2.0 (ASL) from our GitHub project site. The software thus comes "as is" without any warranty (see license text for more details). JWKTL makes use of Berkeley DB Java Edition 5.0.73 (Sleepycat License), Apache Ant 1.7.1 (ASL), Xerces 2.9.1 (ASL), JUnit 4.10 (CPL).

Some classes have been taken from the Wikokit project (available under multiple licenses, redistributed under the ASL license). See NOTICE.txt for further details.


Displaying results 1 to 5 out of 5

Semi-automatic Detection of Cross-lingual Marketing Blunders based on Pragmatic Label Propagation in Wiktionary
Christian M. Meyer,Judith Eckle-Kohler,Iryna Gurevych
In: Proceedings of the 26th International Conference on Computational Linguistics (COLING), p. 2071-2081, December 2016.

Wiktionary: The Metalexicographic and the Natural Language Processing Perspective
Christian M. Meyer
October 2013.

Wiktionary: A new rival for expert-built lexicons? Exploring the possibilities of collaborative lexicography
Christian M. Meyer,Iryna Gurevych
In: Sylviane Granger and Magali Paquot: Electronic Lexicography, chap. 13, p. 259--291, Oxford University Press, November 2012. ISBN 978-0-19-965486-4.

OntoWiktionary – Constructing an Ontology from the Collaborative Online Dictionary Wiktionary
Christian M. Meyer,Iryna Gurevych
In: Maria Teresa Pazienza and Armando Stellato: Semi-Automatic Ontology Development: Processes and Resources, chap. 6, p. 131--161, IGI Global, February 2012. ISBN 978-1-4666-0188-8.

Extracting Lexical Semantic Knowledge from Wikipedia and Wiktionary
Torsten Zesch,Christof Müller,Iryna Gurevych
In: Proceedings of the 6th International Conference on Language Resources and Evaluation, May 2008.

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