| Language (ISO 639-3 code) | Lexicon or Wordlist Source |
| Udi (udi) | Nevskaya, Irina. Udi lexicon. |
| Udi (udi) | Intercontinental Dictionary Series 2006 |
| Udmurt (udm) | Intercontinental Dictionary Series 2006 |
| Uyo Ibibio (ibb) | Ekpenyong, Moses , Dafydd Gibbon & Eno-Abasi Essien Urua. 2004. Uyo Ibibio Dictionary. ABUILD (Abidjan-Bielefeld-Uyo Introduction to Language Documentation) Language Documentation Curriculum Project, Deutscher Akademischer Austauschdienst (DAAD). University of Bielefeld, Germany and University of Uyo, Nigeria. |