Category
page 1Language identifiers
ISO 639
standard for representation of names for language and language groups
ISO 639-1
set of ISO 639 standard
ISO 639-3
set of the ISO 639 standard
ISO 639-2
set of ISO 639 standard
list of ISO 639 language codes
Wikimedia list article
language identifier
symbol to identify a language, dialect or a group of languages
macrolanguage
language scope defined in the ISO 639-3 standard
Esperanto symbols
various symbols that represent Esperanto
ISO 639 Set 5
set of ISO 639 standard
IETF language tag
abbreviated language code listing and format maintained by the Internet Engineering Task Force (IETF) mirroring ISO 639-3
ISO 639-6
deprecated language code standard, was proposed in 2009, maintained by GeoLang, and withdrawn in 2014