Language codes (3 letters) Abbreviations and Acronyms
- YRKNenets: a language of Asian Russia
- YRMYARUMÁ: a language of Brazil
- YRWYarawata: a language of Papua New Guinea
- YUCYuchi: a language of U S A
- YUFHAVASUPAI- WALAPAI- YAVAPAI: a language of U S A
- YUHYue: a language of China
- YUQYuqui: a language of Bolivia
- YURYurok: a language of U S A
- YUWYau: a language of Papua New Guinea
- YUXSouthern Yukaghir: a language of Asian Russia
- YVTYavitero: an extinct language of Venezuela
- YWNYawanawa: a language of Brazil
- YWRYawuru (an extinct language of Australia)
- YWWYawarawarga: a language of Australia
- ZAAZAPOTECO, JUÁREZ, SIERRA: a language of Mexico
- ZABZAPOTECO, SAN JUAN GUELAVÍA: a language of Mexico
- ZAJZalamo: a language of Tanzania
- ZAMZAPOTECO, MIAHUATLÁN CENTRAL: a language of Mexico
- ZAPZapotec
- ZAVZAPOTECO, YATZACHI: a language of Mexico
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