Category: Lists of three-character combinations The Backus–Naur form (BNF) (also known as the Backus–Naur formalism, Backus normal form, or Panini–Backus Form) is a metasyntax used to express context-free grammars: that is, a formal way to describe formal languages. ... In linguistics and computer science, a context-free grammar (CFG) is a formal grammar in which every production rule is of the form V → w where V is a non-terminal symbol and w is a string consisting of terminals and/or non-terminals. ... Mega Man firing his weapon while in Shadow Mans stage from Mega Man 3 (NES). ... Rockman is the name of the main character in the Japanese version of the Mega Man series of video games. ... The new buildings of the library. ... Among science fiction, comic book and fantasy fans, a Big Name Fan (BNF for short) is a member of a fandom who is particularly well-known, liked and celebrated for their contributions of art, fanfiction, or articles on fandom. ... Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes (such as, notably, ammonia, nitrate and nitrogen dioxide). ... Botswana National Front is the main opposition political party in Botswana. ... Otherwise known as the doctors prescribing Bible the British National Formulary (BNF) contains a wide spectrum of information on prescribing and pharmacology, among others indications, side effects and costs of the prescription of all medication drugs available on the National Health Service. ... The British National Formulary for Children (BNF-C) is the standard UK paediatric reference for prescribing and pharmacology, among others indications, side effects and costs of the prescription of all medication drugs available on the National Health Service. ... In the United Kingdom, the British National Front (most commonly called the National Front or NF) is a far right political party that had its heyday during the 1970s and 1980s. ... BNFLs 18 UK sites BNFL, British Nuclear Fuels plc, is an international company, owned by the British government, concerned with nuclear power. ... Image File history File links Disambig_gray. ... It has been suggested that Apocopation be merged into this article or section. ... Acronyms and initialisms are abbreviations, such as NATO, laser, and LED, written as the initial letter or letters of words, and pronounced on the basis of this abbreviated written form. ... Acronyms and initialisms are abbreviations, such as NATO, laser, and LED, written as the initial letter or letters of words, and pronounced on the basis of this abbreviated written form. ... Most three-letter English words are only one syllable long; however, there are certain exceptions such as emu and era. ...