N2 or N-2 may be:N2 is the chemical formula for nitrogen gasN2 is the United States Navy term for a senior military intelligence officerDaghestan Airlines IATA codeLondon N2 London postal districtRevolutions per minute of the high-pressure compressor in a turbofan engine, expressed as a percentage of the maximumThe branding used by the Irish television station Network 2 (now RTÉ Two )between 1997-2004.A para formaldehyde-based filling material for root canals, also called Sargenti pasteKabo Air IATA airline designatorN² Weapon or N2 Weapon from the Neon Genesis Evangelion seriesN2 diagram indicates function to function data interchangeA type of Large Goods VehicleRefers to a family of ERP components in the 200-300 ms poststimulus range
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