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| English | Spanish |
| National Automated Clearing House Association | Asociación nacional de cámaras de compensación estadounidense (An organization that operates the Automated Clearing House (ACH) Network) |
| National Folk | Folk nacional (One of the music genres that appears under Genre classification in Windows Media Player library. Based on ID3 standard tagging format for MP3 audio files. Winamp genre ID 82) |
| national language support API | compatibilidad con el idioma nacional (Set of system functions in 32-bit Windows containing information that is based on language and cultural conventions) |
| National Register of Legal Entities | Registro nacional de entidades legales (A 14-digit identification number issued to Brazilian companies by the Brazilian Ministry of Revenue for tax purposes) |
| South African National Clearing Code | Código de compensación nacional de Sudáfrica (A series of numbers used to identify banks and transaction routing information for South African financial institutes) |