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''Nomen nescio'' (/ˈnoː.men ˈnes.ki.oː/), IPA abbreviated to ''N.N.'', is used to signify an anonymous or unnamed person. From Latin nomen, ''name'', and nescio, ''I do not know'' (from nescire, ''not to know''), it literally means, ''I do not know the name''. One use for this name is to protect against retaliation when reporting a crime or company fraud. In the Netherlands, a police suspect that refuses to give his name is given an "N.N. number." In Germany, and Belgium, ''N.N.'' is also frequently seen in university course lists, indicating that a course will take place but that the lecturer is not yet known; the abbreviation in this case means "nomen nominandum" ("the name is to be announced"). Thus, the meaning is different from the above definition and is the same as TBD (to be decided). "N. N." is commonly used in the scoring of chess games, not only when one participant's name is genuinely unknown but when an untitled player faces a master, as in a simultaneous exhibition. Another reason is to protect a known player from the insult of a painful defeat. The generic name Numerius Negidius used in Roman times was chosen partly because it shared initials with this phrase. Genealogists often use the abbreviation to signify an unknown or partially unknown name (such as ''N.N.'' Jones). In sport, a player whose name is not known at the time of publishing a list may more usually be reported as "A. N. Other" == See also == * John Doe * Mister X (disambiguation) * To be announced 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「Nomen nescio」の詳細全文を読む スポンサード リンク
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