zxx is a code of the ISO 639-2 and ISO 639-3 standards of language acronyms meaning "no linguistic content".
ISO | ISO image | ISO 639-3 | ISO 3166-1 alpha-2 | ISO 216 | ISO/IEC 7816 | ISO 9660 | ISO 10303 | ISO/IEC 42010 | ISO/IEC 15693 | ISO Development Environment | ISO 639-2 | ISO 639-1 | ISO 3166-1 | ISO 26262 | ISO 20022 | List of ISO 639-3 codes | ISO/TS 16949 | ISO New England | Iso Lele | ISO/IEC 8859 | ISO/IEC 7810 | ISO/IEC 646 | ISO/IEC 24744 | Iso-Heikkilä Observatory | Iso H | ISO basic Latin alphabet | ISO 9529 | ISO 9362 | ISO 639 |
Ethnologue gives the name "Hiberno-Scottish Gaelic" (and the ISO 639-3 code ghc) as a cover term for Classical Gaelic and Early Modern Irish.
Infoterm (International Information Center for Terminology) is the registration authority for ISO 639-1 codes.
Logonyms may be either officially recognized names (e.g., via a governmental authority or the ISO 639-3 code) or less formalized or standardized names used by speakers or non-speakers to denote a particular language.
ISO 639-3 code "nhj" for the Tlalitzlipa Nahuatl language, a Nahuatl dialect
ISO 639 language designation for the Oji-Cree language, also known as the Severn Ojibwa language or Anishininiimowin (Anishinini language)
otw, the ISO 639-3 language code for Ottawa language, a dialect of the Ojibwe language, spoken by the Ottawa people in southern Ontario in Canada, and northern Michigan in the United States
Grebo language (ISO 639-2 language code), spoken by the Grebo people of Liberia and the Krumen of Ivory Coast.
List of ISO 639-3 codes, with corresponding ISO 639-1 and ISO 639-2 codes