| 32182 | Siane | litimu | | | SIL (1987) | |
| 199509 | Siawi | ʔʌniŋkɔʔ | | | Conrad and Dye (1975) | |
| 126234 | Sihan | wi:ku | | | Z'graggen (1980) | night |
| 216734 | Sikaritai | ig̚jɛkig̚ | | | Clouse (1997) | |
| 194063 | Sileibi | kʉnzʉndi | | | Z'graggen (1980) | night |
| 26908 | Silimo | kʋpaka | | | Bromley (1967) | |
| 126254 | Silopi | tupʌna | | | Z'graggen (1980) | night |
| 4888 | Simbari | sɨlaatɨ | | | Lloyd (1973) | |
| 258099 | Sinaugoro | boɣi | | | Dutton (1970) | night |
| 182003 | Sinsauru | kotiʌb | | | Z'graggen (1980) | night |
| 182011 | Siroi | furir- | | | Z'graggen (1980) | night |
| 30690 | Skou | rampai | | | Voorhoeve (1971) | |
| 23770 | Skou | rampal | | | Voorhoeve (1975) | |
| 25029 | Sobei | pani | | | Voorhoeve (1975) | |
| 213706 | Som | wese(e)re | | | SIL (1968) | |
| 90763 | Somba-Siawari (Burum Dialect) | suŋgem | night | | McElhanon (1967) | night |
| 90758 | Somba-Siawari (Mindik Dialect) | suŋgem | night | | McElhanon (1967) | night |
| 15810 | Sonia | unudu | | | Shaw (1986) | |
| 182017 | Sop | gituo | | | Z'graggen (1980) | night |
| 2416 | Southern Kiwai (Tureture Dialect) | duwo | | | Wurm (1973) | |
| 17360 | Southern Kiwai | duwo | | | Wurm (1973) | |
| 19278 | Sowanda | inaikim | | | Voorhoeve (1975) | |
| 30857 | Sowanda | inaikim | | | Voorhoeve (1971) | |
| 18997 | Sowari | urim | | | Voorhoeve (1975) | |
| 22126 | Suabo | niro | | | Voorhoeve (1975) | |
| 52532 | Suena | mume | dark | | Smallhorn (2011) | |
| 52577 | Suena | tumou | night | | Smallhorn (2011) | |
| 52562 | Suena | pi | night | | Smallhorn (2011) | |
| 52563 | Suena (Yema-Yarawe Dialect) | pi | darkness, night | | Smallhorn (2011) | |
| 78828 | Suki | ie | | | Voorhoeve (1970) | |
| 182018 | Sumau | ukum | | | Z'graggen (1980) | night |
| 27564 | Tabo | duʔ | | | Reesink (1976) | |
| 1611 | Tabo | du: duʔu | | | Wurm (1973) | |
| 245844 | Tabriak | wuru | | | SIL (1990) | |
| 245994 | Tabriak | wi | | | SIL (1967) | |
| 245826 | Tabriak | wi | | | SIL (1990) | |
| 19115 | Taikat | eabur | | | Voorhoeve (1975) | |
| 30298 | Taikat | eabur | | | Voorhoeve (1971) | |
| 15706 | Tainae | mwaanu' | | | Lloyd (1973) | |
| 73572 | Tairora, North | enta'ira | | | Scott (1978) | |
| 31361 | Tairora, South | hendaʔi | | | SIL (1976) | |
| 3157 | Tairuma | eloa | | | Brown (1973) | |
| 30378 | Tamagario | ete mowp | | | Voorhoeve (1971) | |
| 20528 | Tamagario | ete | | | Voorhoeve (1975) | |
| 21645 | Tanahmerah | muamini | | | Voorhoeve (1975) | |
| 26075 | Tanahmerah | dənə | | | Voorhoeve (1975) | |
| 212042 | Tangko | qɯnɔˈɾɛɾ | | | Hughes (2009) | |
| 218441 | Tauade | kuᵛitda'ma | kwitda'ma | | SIL (1980) | |
| 216720 | Tause | oβɾa | | | Clouse (1997) | |
| 216719 | Tause (Deirate Dialect) | ɔɸanu | | | Clouse (1997) | |
