| 73473 | Siane | wé(lá) | | | Scott (1978) | |
| 32114 | Siane | vetne | | | SIL (1987) | |
| 32498 | Siane | we-ne | | | Salisbury (1956) | |
| 32611 | Siane (Kovena Dialect) | ve-no | | | Salisbury (1956) | |
| 199505 | Siawi | isɛmiakɔ | | | Conrad and Dye (1975) | |
| 120343 | Sihan | o- | | | Z'graggen (1980) | mouth |
| 212755 | Sikaritai | a-wɛ | | | Clouse (1997) | |
| 190546 | Sileibi | mukʌsiŋgɨt | | | Z'graggen (1980) | mouth |
| 190547 | Sileibi | sumusiŋgit | | | Z'graggen (1980) | mouth |
| 26904 | Silimo | nemde | my mouth | | Bromley (1967) | mouth (my) |
| 120362 | Silopi | owe- | | | Z'graggen (1980) | mouth |
| 4871 | Simbari | maamputa | | | Lloyd (1973) | |
| 257675 | Sinaugoro | boka- | | | Dutton (1970) | mouth |
| 176682 | Sinsauru | lɔmo | | | Z'graggen (1980) | mouth |
| 176690 | Siroi | miŋge | | | Z'graggen (1980) | mouth |
| 30686 | Skou | láŋöw | | | Voorhoeve (1971) | |
| 155504 | Som | gok | | | McElhanon and Voorhoeve (1970) | mouth |
| 213720 | Som | gokŋi | | | SIL (1968) | |
| 155533 | Somba-Siawari (Burum Dialect) | numbu | | | McElhanon and Voorhoeve (1970) | mouth |
| 155534 | Somba-Siawari (Mindik Dialect) | numbu | | | McElhanon and Voorhoeve (1970) | mouth |
| 15793 | Sonia | mekʌf | | | Shaw (1986) | |
| 176696 | Sop | subo | | | Z'graggen (1980) | mouth |
| 155481 | Southern Kiwai (Tureture Dialect) | magota | | | McElhanon and Voorhoeve (1970) | mouth |
| 2399 | Southern Kiwai (Tureture Dialect) | magata | | | Wurm (1973) | |
| 17343 | Southern Kiwai | magota | | | Wurm (1973) | |
| 155479 | Southern Kiwai | magata | | | McElhanon and Voorhoeve (1970) | mouth |
| 30852 | Sowanda | meŋgek | | | Voorhoeve (1971) | |
| 28387 | Suena | be | | | Wilson (1969) | |
| 155545 | Suena | be | | | McElhanon and Voorhoeve (1970) | mouth |
| 52292 | Suena | be | mouth, mouth of river | | Smallhorn (2011) | |
| 52289 | Suena | bè | mouth | | Smallhorn (2011) | |
| 52293 | Suena (Yema-Yarawe Dialect) | be | mouth | | Smallhorn (2011) | |
| 155478 | Suki | tauka | | | McElhanon and Voorhoeve (1970) | mouth |
| 78821 | Suki | mada | | | Voorhoeve (1970) | |
| 176697 | Sumau | supu | | | Z'graggen (1980) | mouth |
| 27521 | Tabo | tabo | | | Reesink (1976) | |
| 1594 | Tabo | tabo | | | Wurm (1973) | |
| 245891 | Tabriak | andukʰ | | | SIL (1967) | |
| 245714 | Tabriak | anduk mɨnak | | | SIL (1990) | |
| 30296 | Taikat | kamea | | | Voorhoeve (1971) | |
| 15689 | Tainae | maaga | | | Lloyd (1973) | |
| 73474 | Tairora, North | no | | | Scott (1978) | |
| 31256 | Tairora, South | no | | | SIL (1976) | |
| 3140 | Tairuma | ape | | | Brown (1973) | |
| 30374 | Tamagario | mowp | | | Voorhoeve (1971) | |
| 211952 | Tangko | ˌtɑnˈtɑmɔn | | | Hughes (2009) | |
| 218078 | Tauade | ketapai | | | SIL (1980) | |
| 212741 | Tause | a-kwa | | | Clouse (1997) | |
| 212740 | Tause (Deirate Dialect) | kwa-dude | | | Clouse (1997) | |
| 212739 | Tause (Weirate Dialect) | a-wao | | | Clouse (1997) | |
