| 197107 | Tifal | ùluùm | | | Loughnane and Fedden (2011) | |
| 218348 | Migabac | umacine | | | SIL (1975) | |
| 73205 | Gadsup | umaniremni | | | Scott (1978) | |
| 73200 | Awiyaana | umbaintai | | | Scott (1978) | |
| 193703 | Atemble | umbuj- | (v) | | Z'graggen (1980) | heavy |
| 73201 | Awa | umehi' | | | Scott (1978) | |
| 212968 | Awa | umʌiʔ | | | SIL (1976) | |
| 81108 | Fasu | umisa | | | Franklin (1975) | |
| 125510 | Silopi | unʌː | | | Z'graggen (1980) | heavy |
| 125511 | Utu | una | | | Z'graggen (1980) | heavy |
| 28553 | Warkay-Bipim | unəhu | | | Voorhoeve (1971) | |
| 125513 | Baimak | uːnou | | | Z'graggen (1980) | heavy |
| 31937 | Bauwaki | unumu | | | SIL (1973) | |
| 181403 | Waube | uːpʌ | | | Z'graggen (1980) | heavy |
| 181386 | Sausi | uPurua | | | Z'graggen (1980) | heavy |
| 125491 | Munit | uʔʌru | | | Z'graggen (1980) | heavy |
| 125494 | Gumalu | urumen | | | Z'graggen (1980) | heavy |
| 125493 | Sihan | urumen | | | Z'graggen (1980) | heavy |
| 125495 | Isebe | urume:ni | | | Z'graggen (1980) | heavy |
| 86776 | Mailu (Island Dialect) | urumu | | | Thomson (1975) | |
| 88146 | Mailu (Delebai Dialect) | urumu | | | Thomson (1975) | |
| 86228 | Mailu (Asiaoro Dialect) | urumu | | | Thomson (1975) | |
| 75120 | Mailu | urumu | | | Saville (1912) | |
| 87324 | Mailu (Domara Dialect) | urumu | | | Thomson (1975) | |
| 87598 | Mailu (Baibara Dialect) | urumu | | | Thomson (1975) | |
| 87872 | Mailu (Geagea Dialect) | urumu | | | Thomson (1975) | |
| 87050 | Mailu (Borebo Dialect) | urumu | | | Thomson (1975) | |
| 88420 | Mailu (Darava Dialect) | urumu | | | Thomson (1975) | |
| 86502 | Mailu (Ilai Dialect) | urumu | | | Thomson (1975) | |
| 209022 | Proto-Mabuso | *usuk | | | Ross (2014) | heavy |
| 216015 | Uyajitaya (Uya Dialect) | uɸu | | | Lambrecht et al. (2008) | |
| 215655 | Amowe (Tagoe Dialect) | uɸu | | | Lambrecht et al. (2008) | |
| 217109 | Uyajitaya (Gisi Dialect) | uɸu | | | Rueck & Jore (2003) | |
| 216938 | Uyajitaya (Udibai Dialect) | uɸu | | | Rueck & Jore (2003) | |
| 216818 | Uyajitaya (Subalulu Dialect) | uɸu | | | Rueck & Jore (2003) | |
| 216255 | Uyajitaya (Didiwala Dialect) | uɸu | | | Rueck & Jore (2003) | |
| 216135 | Uyajitaya (Palipa Dialect) | uɸu | | | Rueck & Jore (2003) | |
| 215895 | Amowe (Bere Dialect) | uɸu | | | Lambrecht et al. (2008) | |
| 181402 | Uyajitaya | uᵱu | | | Z'graggen (1980) | heavy |
| 193710 | Tauya | uɸuma | | | Z'graggen (1980) | heavy |
| 125503 | Saruga | uvoumo | | | Z'graggen (1980) | heavy |
| 125514 | Matepi | uwahau | | | Z'graggen (1980) | heavy |
| 214567 | Rasawa | u-βie | | | Clouse (1997) | |
| 245565 | Gaikundi | vatɨk mi | | | SIL (1991) | |
| 214576 | Duvle | vɪɾɛ | | | Clouse (1997) | |
| 28587 | Kuni-Boazi | viniv | | | Voorhoeve (1970) | |
| 181394 | Ganglau | vudukŋ | | | Z'graggen (1980) | heavy |
| 246525 | Chambri | wabi | | | SIL (1975) | |
| 193701 | Moresada | wit- | | | Z'graggen (1980) | heavy |
| 193700 | Anamgura | witi- | | | Z'graggen (1980) | heavy |
