Sentence:  &#91;[https://books.google.com/books?id=lHdi1CEPLb4C&pg=PA428 page 428]&#93; <WSD>Wiktionary</WSD> is a multilingual dictionary (also thesaurus and phrase-book) and has distinctive content policies. Words must be "attested" and "idiomatic" (that is, words should be in use, and phrases should be commonly used idioms), and submissions should be neutral and verifiable. ... &#91;[https://books.google.com/books?id=lHdi1CEPLb4C&pg=PA430 page 430]&#93; <WSD>Wiktionary</WSD> was proposed on the "Wikipedia-L" mailing list in April 2001 by w 
Meaning of the word marked with <WSD> tags:  A collaborative project run by the Wikimedia Foundation to produce a free and complete dictionary in every language; the dictionaries, collectively, produced by that project.