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Wiktionary (whose name is a blend of the words ''wiki'' and ''dictionary'') is a multilingual, web-based project to create a free content dictionary of all words in all languages. It is available in 158 languages and in Simple English. Like its sister project Wikipedia, Wiktionary is run by the Wikimedia Foundation, and is written collaboratively by volunteers, dubbed "Wiktionarians". Its wiki software, MediaWiki, allows almost anyone with access to the website to create and edit entries. Because Wiktionary is not limited by print space considerations, most of Wiktionary's language editions provide definitions and translations of words from many languages, and some editions offer additional information typically found in thesauri and lexicons. The English Wiktionary includes a Wikisaurus (thesaurus) of synonyms of various words. Wiktionary data are frequently used in various natural language processing tasks. == History and development == Wiktionary was brought online on December 12, 2002, following a proposal by Daniel Alston and an idea by Larry Sanger, co-founder of Wikipedia. On March 28, 2004, the first non-English Wiktionaries were initiated in French and Polish. Wiktionaries in numerous other languages have since been started. Wiktionary was hosted on a temporary domain name (wiktionary.wikipedia.org) until May 1, 2004, when it switched to the current domain name. , Wiktionary features well over 5 million entries across its 272 language editions. By August 2015, the total entry count was over 15 million.〔https://www.wiktionary.org/〕 The largest of the language editions is the English Wiktionary, with over 4.2 million entries, followed by the Malagasy Wiktionary with over 3.9 million entries and the French Wiktionary with over 2.8 million. Thirty six Wiktionary language editions now contain over 100,000 entries each. Most of the entries and many of the definitions at the project's largest language editions were created by bots that found creative ways to generate entries or (rarely) automatically imported thousands of entries from previously published dictionaries. Seven of the 18 bots registered at the English Wiktionary created 163,000 of the entries there.〔(TheDaveBot ), (TheCheatBot ), (Websterbot ), (PastBot ), (NanshuBot )〕 Another of these bots, "ThirdPersBot," was responsible for the addition of a number of third-person conjugations that would not have received their own entries in standard dictionaries; for instance, it defined "smoulders" as the "third-person singular simple present form of smoulder." Of the 648,970 definitions the English Wiktionary provides for 501,171 English words, 217,850 are "form of" definitions of this kind.〔(Detailed statistics ) as of 1 July 2013〕 This means its coverage of English is slightly smaller than that of major monolingual print dictionaries. The ''Oxford English Dictionary'', for instance, has 615,000 headwords, while ''Merriam-Webster's Third New International Dictionary of the English Language, Unabridged'' has 475,000 entries (with many additional embedded headwords). Detailed statistics exist to show how many entries of various kinds exist. The English Wiktionary does not rely on bots to the extent that some other editions do. The French and Vietnamese Wiktionaries, for example, imported large sections of the Free Vietnamese Dictionary Project (FVDP), which provides free content bilingual dictionaries to and from Vietnamese. These imported entries make up virtually all of the Vietnamese edition's contents. Almost all non-Malagasy-language entries of the Malagasy Wiktionary were copied by bot from other Wiktionaries. Like the English edition, the French Wiktionary has imported the approximately 20,000 entries from the Unihan database of Chinese, Japanese, and Korean characters. The French Wiktionary grew rapidly in 2006 thanks in large part to bots copying many entries from old, freely licensed dictionaries, such as the eighth edition of the ''Dictionnaire de l'Académie française'' (1935, around 35,000 words), and using bots to add words from other Wiktionary editions with French translations. The Russian edition grew by nearly 80,000 entries as "LXbot" added boilerplate entries (with headings, but without definitions) for words in English and German.〔(LXbot ) 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「wiktionary」の詳細全文を読む スポンサード リンク
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