| 29816 | Sawi | ideir | | | Voorhoeve (1971) | |
| 90839 | Selepet | elem | cloud | | McElhanon (1967) | cloud |
| 228546 | Seta | yɛmbɩti | | | SIL (2000) | |
| 202946 | Setaman (Baktamin Dialect) | ip | | | Van Cott and Spencer (2010) | |
| 202810 | Setaman (Ngisokabip Dialect) | ip̚ | | | Van Cott and Spencer (2010) | |
| 202688 | Setaman (Seltamin Dialect) | ip̚ | | | Van Cott and Spencer (2010) | |
| 32512 | Siane | rimu | | | Salisbury (1956) | |
| 72518 | Siane | lîmú | | | Scott (1978) | |
| 32141 | Siane | litmu | | | SIL (1987) | |
| 32624 | Siane (Kovena Dialect) | dimusi | | | Salisbury (1956) | |
| 196435 | Siawi | nɛbɛ | | | Conrad and Dye (1975) | |
| 124056 | Sihan | ʌba tina | | | Z'graggen (1980) | cloud |
| 216343 | Sikaritai | taki kwakid | | | Clouse (1997) | |
| 192957 | Sileibi | kumbiŋgɨpa | | | Z'graggen (1980) | cloud |
| 26225 | Silimo | o-kena [óxena] | | | Bromley (1967) | |
| 124084 | Silopi | katutu | | | Z'graggen (1980) | cloud |
| 124083 | Silopi | i:hu | | | Z'graggen (1980) | cloud |
| 4886 | Simbari | sɨlɨ'wa | | | Lloyd (1973) | |
| 258056 | Sinaugoro | magube | | | Dutton (1970) | cloud |
| 180084 | Sinsauru | hou | | | Z'graggen (1980) | cloud |
| 180091 | Siroi | gau | | | Z'graggen (1980) | cloud |
| 213708 | Som | kuan | | | SIL (1968) | |
| 90847 | Somba-Siawari (Burum Dialect) | kousu | cloud | | McElhanon (1967) | cloud |
| 90842 | Somba-Siawari (Mindik Dialect) | kousu | cloud | | McElhanon (1967) | cloud |
| 15808 | Sonia | kelɩn | | | Shaw (1986) | |
| 180099 | Sop | piou | | | Z'graggen (1980) | cloud |
| 2414 | Southern Kiwai (Tureture Dialect) | toboroere | | | Wurm (1973) | |
| 17431 | Southern Kiwai | tobore | | | Wurm (1973) | |
| 17358 | Southern Kiwai | bubuere | | | Wurm (1973) | |
| 30818 | Sowanda | laŋgo | | | Voorhoeve (1971) | |
| 28451 | Suena | utu | | | Wilson (1969) | |
| 28450 | Suena | bereze | | | Wilson (1969) | |
| 48902 | Suena | [so] gousa gausa [wai] | cloud up | | Smallhorn (2011) | |
| 48923 | Suena | guma | haze | | Smallhorn (2011) | |
| 48933 | Suena | poraga | cloud | | Smallhorn (2011) | |
| 180100 | Sumau | mɛnʌ | | | Z'graggen (1980) | cloud |
| 27558 | Tabo | bubu | | | Reesink (1976) | |
| 1609 | Tabo | bubu | | | Wurm (1973) | |
| 245747 | Tabriak | krambri | | | SIL (1990) | |
| 245923 | Tabriak | tʰumbun | | | SIL (1967) | |
| 30270 | Taikat | tik | | | Voorhoeve (1971) | |
| 15704 | Tainae | abgwi' | | | Lloyd (1973) | |
| 72519 | Tairora, North | tonabu | | | Scott (1978) | |
| 31288 | Tairora, South | torʌmu | | | SIL (1976) | |
| 3155 | Tairuma | mea-e | | | Brown (1973) | |
| 30338 | Tamagario | taam | | | Voorhoeve (1971) | |
| 212036 | Tangko | dɛːp | | | Hughes (2009) | |
| 218110 | Tauade | pɔnivi | | | SIL (1980) | |
| 216330 | Tause | kwe | | | Clouse (1997) | |
| 216329 | Tause (Deirate Dialect) | taɾu-kwa | | | Clouse (1997) | |
