Contents › Section 8: Corpora, tools and language technology › answer 19 of 22
Why does Wordnet lack stopwords ("the", "of", "her", etc)?
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WordNet is not a dictionary but a semantic lexical database. The key function of WordNet is to create a network of semantic relationships between words (synonyms, meronyms, etc.) So it makes sense it would only focus on content words and not function words (which is what stop words are).
There are many free online dictionaries - depends on what you need one for.
Wiktionary is really comprehensive and it has a machine-readable downloadable version.
© Dominik Lukeš. Licensed under CC BY-SA 3.0. Originally published on Linguistics Stack Exchange, attributed there to Dominik Lukes (profile).