| 29888 | Zimakani (South Boazi Dialect) | siŋgi | | | Voorhoeve (1970) | |
| 27714 | Zimakani (Begua Dialect) | sɩŋgɩ | | | Voorhoeve (1970) | |
| 31202 | Zimakani | siŋgi | | | Voorhoeve (1970) | |
| 47916 | Zia (Mawai Dialect) | ca | areca nut | | Smallhorn (2011) | |
| 47915 | Zia | jã | betelnut | | Smallhorn (2011) | |
| 122665 | Yoidik | bai | | | Z'graggen (1980) | betelnut |
| 235509 | Yimas | patn | | | Foley (2005) | |
| 236179 | Yimas | patn | | | Foley (2005) | |
| 7659 | Yimas | patn | | | Foley (1986) | |
| 47913 | Yekora | jã | betelnut | | Smallhorn (2011) | |
| 47936 | Yegha (Yega Dialect) | jan | areca nut | | Smallhorn (2011) | |
| 47949 | Yegha (Korafe Dialect) | ja['ka] | betel nut tree, betel nut | | Smallhorn (2011) | |
| 47935 | Yegha (Ambe-Dofo Dialect) | 'ja | betel nut tree and fruit | | Smallhorn (2011) | |
| 141784 | Yarawata | nara | | | Z'graggen (1980) | (betelnut) |
| 223330 | Yaqay (Wanggate Dialect) | jɑˈɣɑo | | | Kriens & Lebold (2010) | |
| 223099 | Yaqay (Wairu Dialect) | ˈikɑ | | | Kriens & Lebold (2010) | |
| 222696 | Yaqay (Kotup Dialect) | ˈikɑʔ | | | Kriens & Lebold (2010) | |
| 220292 | Yaqay (Kogo Dialect) | iˈkɑ | | | Kriens & Lebold (2010) | |
| 178804 | Yangulam | ʌ | | | Z'graggen (1980) | betelnut |
| 178790 | Yabong | dima | | | Z'graggen (1980) | betelnut |
| 141783 | Yaben | ma:du | | | Z'graggen (1980) | betelnut |
| 178801 | Waube | zuray | | | Z'graggen (1980) | betelnut |
| 178784 | Watiwa | tim | | | Z'graggen (1980) | betelnut |
| 141766 | Waskia | muri | | | Z'graggen (1980) | betelnut |
| 211010 | Wanggom | ndiʔ | | | Hughes (2009) | |
| 141779 | Wanambre | moŋgotu | | | Z'graggen (1980) | betelnut |
| 214236 | Wambon | tɛtˈwɑrɛrɔp | | | Hughes (2009) | |
| 122658 | Wamas | kanɛ | | | Z'graggen (1980) | betelnut |
| 196906 | Walio | amuwe | | | Conrad and Dye (1975) | |
| 122675 | Wagi | fa | | | Z'graggen (1980) | betelnut |
| 192232 | Wadaginam | ayʌːmp | | | Z'graggen (1980) | betelnut |
| 178800 | Uyajitaya | zorʌy | | | Z'graggen (1980) | betelnut |
| 178798 | Uya | gi | | | Z'graggen (1980) | betelnut |
| 122669 | Utu | fa | | | Z'graggen (1980) | betelnut |
| 192228 | Utarmbung | maŋda- | | | Z'graggen (1980) | betelnut |
| 141782 | Usan | naraw | | | Z'graggen (1980) | (betelnut) |
| 178796 | Urigina | ʌu | | | Z'graggen (1980) | betelnut |
| 141787 | Ukuriguma | nigara | | | Z'graggen (1980) | betelnut |
| 258551 | Uare | ˈʒore | | | Dutton (1970) | betel nut |
| 214774 | Tsaukambo | ndiʔ | | | Hughes (2009) | |
| 239249 | Tok Pisin | buai | betelnut | | Abbott (1985) | |
| 192240 | Tauya | auɸu | | | Z'graggen (1980) | betelnut |
| 212011 | Tangko | biˈl̯iɸ | | | Hughes (2009) | |
| 237151 | Tanggu | miak | | | Foley (2005) | |
| 7767 | Tabriak | payn | | | Foley (1986) | |
| 236180 | Tabriak | payn | | | Foley (2005) | |
| 235510 | Tabriak | payn | | | Foley (2005) | |
| 246049 | Tabriak | bayn | | | SIL (1967) | |
| 178795 | Sumau | ʌuri | | | Z'graggen (1980) | betelnut |
| 47912 | Suena (Yema-Yarawe Dialect) | ca | areca nut | | Smallhorn (2011) | |
