WordNet is a large lexical database of English, developed under the direction
of George A. Miller. Nouns, verbs, adjectives and adverbs are grouped into sets
of cognitive synonyms (synsets), each expressing a distinct concept. Synsets
are interlinked by means of conceptual-semantic and lexical relations. The
resulting network of meaningfully related words and concepts can be navigated
with the browser. WordNet is also freely and publicly available for download.
WordNet's structure makes it a useful tool for computational linguistics and
natural language processing.