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Libre is a loan word in English, borrowed from French and Spanish, used to describe something as being "free", in the sense of "having freedom" or "liberty". It is used in English is to distinguish the two meanings of free: free as in freedom (''libre'') from free as in free of charge (''gratis''). Another sample is common: Free as "Free Speech", not as "Free Drink"! Historically the word has been borrowed from Romance languages, usually to refer to free will or freedom of expression in some aspect of the lending culture (e.g. vers libre in French poetry, or the Spanish term Lucha libre, a style of wrestling). In the 1990s, libre was proposed as an alternative term for free software which avoided the ambiguity in the word "free" in English.〔 The word gained some acceptance in the software community, though the terms "free software" and "open source software" remain dominant. "Free" and "open" have both been rigorously defined in the free software and the open source definitions which have formed the basis of similar definitions in the realms of education, knowledge and culture. The word "libre" is now used in discourses requiring an unambiguous adjective meaning "free as in freedom", often concerning one or more of the following: open source or open source software, free software, the free software movement or the free culture movement, open and libre knowledge. In these contexts, "libre" encompasses the four essential freedoms defined in the free software definition, and is used to describe works which may be used, modified, copied and shared without permission from the copyright holder. Public copyright licenses that grant these freedoms (libre licences) typically require attribution for contributors and may include copyleft terms that ensure these essential freedoms remain in future derivative works. Works that are in the public domain are also considered libre.〔〔 The word "libre" has also been recommended as an alternative for "open" when the core freedoms apply.〔 Examples of terms that use "libre" in this way include libre software, FLOSS (free/libre and open source software), libre knowledge, libre resources and (libre works ). The antonym "non-libre" (or proprietary) is used to describe works released under licences which deny users one or more of the essential freedoms. For example, licences that forbid commercial use or derivative works are non-libre, as are works restricted by patents or trademarks. ==Etymology == Libre comes from the Latin word ''līber'', via the French and Spanish ''libre''; it shares that root with ''liberty''. It denotes "the state of being free", in the sense of "having freedom" or "liberty". The ''Oxford English Dictionary'' (OED) describes ''libre'' as obsolete,〔 but the word has come back into limited use. Its primary function in English is to serve as an adjective describing something as being free as in freedom (''libre''), irrespective of whether or not it is free of charge (gratis). 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「Libre (word)」の詳細全文を読む スポンサード リンク
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