A Java API for accessing the WordNet relational dictionary. Free download, support and background information.

Direct online access to version 1.6 of this database. Hosted by Oxford English Online.

Nouns, verbs, adjectives and adverbs are organized into synonym sets, each representing one underlying lexical concept.

Interactive interface allowing simultaneous selection of multiple terms. Developed by the French E.N.S.T. group.

Perl OO interface to George Miller's WordNet database.

Python interface (by Oliver Steele) to WordNet database created by George Miller.