| 44451 | Tuvaluan | -na | | | Besnier (2000) | |
| 44403 | Tuvaluan | -na | | | Besnier (2000) | |
| 56221 | Tuwuli | ye | | | Harley (2005) | |
| 52635 | Tuyuca | -ja | | | Barnes and Malone (2000) | |
| 25079 | Tyeraity | yöntön | | | Breen (1990) | |
| 24399 | Ungarinyin | anaŋga | | | Rumsey (1982) | |
| 50399 | Ura | aryi | | | Crowley (1999) | |
| 49499 | Urdu | uskaa | | | Bhatia and Koul (2000) | |
| 40831 | Urim | kil | | | Hemmilä and Luoma (1987) | |
| 40007 | Usan | wonou | | | Reesink (1987) | |
| 29832 | Usan | wonou | | | Reesink (1987) | |
| 47171 | Usarufa | a- | | | Ross (1995) | |
| 46939 | Ute-Southern Paiute | ˈmaajas | | | Givón (2011) | |
| 50735 | Vaeakau-Taumako | na | | | Næss (2000) | |
| 40546 | Vanimo | hè | | | Ross (1980) | |
| 57837 | Viemo | yi | | | Prost (1979) | |
| 28705 | Wahgi | -m | | | Phillips (1976) | |
| 28484 | Wambaya | nangi | | | Nordlinger (1998) | |
| 31796 | Wambon | nekho- | | | de Vries and de Vries-Wiersma (1992) | |
| 24875 | Wandarang | agi | | | Heath (1980a) | |
| 25554 | Wangkajunga | palunyakurnu | | | Jones (2011) | |
| 44835 | Wappo | temeʔ | | | Thompson et al. (2006) | |
| 57981 | Wara | i | | | Prost (1968) | |
| 59459 | Wára | naβane | | | Evans et al (2017) | |
| 45843 | Warao | ∅ | | | Romero-Figeroa (1997) | |
| 40498 | Warapu | yá | | | Corris (2005) | |
| 25990 | Wargamay | ɲuŋaŋu | | | Dixon (1981) | |
| 35070 | Warrnambool | -nhung, -nyung | | | Blake (2003) | |
| 23354 | Warta Thundai | benan | | | Quinn () | |
| 46419 | Warungu | ɲoŋo | | | Tsunoda (2011) | |
| 42783 | Waskia | ko | | | Ross (2014) | |
| 31021 | Wati-Wati | ngukayu | | | Blake et al. (2011) | |
| 26058 | Watjarri | paluŋu | | | Douglas (1981) | |
| 53047 | Wayuu | nɨ- | | | Mansen and Captain (2000) | |
| 60235 | Welsh-ICR-KQ | ei- | mutation pattern | | King (2003) | |
| 60509 | Welsh-ICR-NE | eiº | | | King (2003) | |
| 60557 | Welsh-ICR-NE | eiº | | | King (2003) | |
| 54989 | West-Central Limba | nama | | | Mukarovsky (1962/1963) | |
| 30523 | Western Dani | e- | | | Barclay (2008) | |
| 30522 | Western Dani | o- | | | Barclay (2008) | |
| 30524 | Western Dani | a- | | | Barclay (2008) | |
| 30521 | Western Dani | ∅- | | | Barclay (2008) | |
| 62595 | Wilawila | a- | | | Capell and Coate (1984) | |
| 42583 | Wipim | tiina | | | Dondorp and Shim (1997) | |
| 55755 | Wolof | -am | | | Ngom (2003) | |
| 25215 | Worrorra | awanaŋga | | | Capell and Coate (1984) | |
| 52260 | Woun Meu | iɕ | | | Fonegra (2000) | |
| 28552 | Wunambal | bɨniningge | | | Carr (2000) | |
| 48265 | Yabem | ne | | | Lynch et al. (2002) | |
| 48310 | Yabem | -0 | | | Lynch et al. (2002) | |
