| 232980 | Owiniga | sa | | | SIL (1972) | |
| 198495 | Owiniga | sa | | | Conrad and Dye (1975) | |
| 246260 | Owiniga | sah | | | SIL (1963) | |
| 214458 | Orya | syauk | | | Clouse (1997) | |
| 25784 | Orya | siawk | | | Voorhoeve (1975) | |
| 4683 | Orokolo | a | | | Brown (1973) | |
| 3999 | Orokolo (Kaipi Dialect) | a | | | Brown (1973) | |
| 157170 | Orokaiva (Sairope Dialect) | i | fire, tree | | McElhanon and Voorhoeve (1970) | fire |
| 28359 | Orokaiva (Sairope Dialect) | i | | | Wilson (1969) | |
| 28219 | Orokaiva (Kendata Dialect) | i | | | Wilson (1969) | |
| 157171 | Orokaiva (Kendata Dialect) | i | fire, tree | | McElhanon and Voorhoeve (1970) | fire |
| 157172 | Orokaiva (Jegarata-Kakendetta Dialect) | zi | fire, tree | | McElhanon and Voorhoeve (1970) | fire |
| 28184 | Orokaiva (Jegarata-Kakendetta Dialect) | zi | | | Wilson (1969) | |
| 50264 | Orokaiva (Dobuduru Dialect) | [ji]awo | fire | | Smallhorn (2011) | |
| 28136 | Orokaiva (Dobuduru Dialect) | yia | | | Wilson (1969) | |
| 50265 | Orokaiva (Dobuduru Dialect) | [yi]a | fire | | Smallhorn (2011) | |
| 24036 | Ormu | yairare | | | Voorhoeve (1975) | |
| 4579 | Opao | a | | | Brown (1973) | |
| 157143 | Ono (Zankoa Dialect) | dʌgʌn | | | McElhanon and Voorhoeve (1970) | fire |
| 157142 | Ono (Kip Dialect) | gɛrɛp | | | McElhanon and Voorhoeve (1970) | fire |
| 157144 | Ono (Karako Dialect) | səl | | | McElhanon and Voorhoeve (1970) | fire |
| 20585 | Onin | api | | | Voorhoeve (1975) | |
| 20557 | Onin | yafi | | | Voorhoeve (1975) | |
| 244069 | One, Inebu | ni:pi | | | Laycock (1968) | |
| 6011 | Onabasulu | de | | | Shaw (1973) | |
| 16116 | Onabasulu | ti | | | Shaw (1986) | |
| 14703 | Ömie | vën-i | fire, firewood | | Dutton (2010) | |
| 3686 | Omati | kumu | | | Franklin (1973) | |
| 244072 | Olo | weli | | | Laycock (1968) | |
| 75455 | Oirata | 'ata | | | Taber (1993) | |
| 179671 | Ogea | eya | | | Z'graggen (1980) | fire |
| 16216 | Odoodee (Kalamo Dialect) | dɔu | | | Shaw (1986) | |
| 16316 | Odoodee (Hesif Dialect) | dɔu | | | Shaw (1986) | |
| 214452 | Obokuitai | kwɛ | | | Clouse (1997) | |
| 200037 | Numanggang (Tumung Dialect) | kudup | | | Retsema et al. (2009) | |
| 200115 | Numanggang (Kawalang Dialect) | kudup | | | Retsema et al. (2009) | |
| 157136 | Numanggang | kudip | | | McElhanon and Voorhoeve (1970) | fire |
| 157109 | Nukna (Hamelengan Dialect) | ɔrɔp | | | McElhanon and Voorhoeve (1970) | fire |
| 157108 | Nukna | kɔlɔp | | | McElhanon and Voorhoeve (1970) | fire |
| 199935 | Nuk (Tunam Dialect) | kɨndɨp | | | Retsema et al. (2009) | |
| 199825 | Nuk (Tamben Dialect) | miɛt | | | Retsema et al. (2009) | |
| 157139 | Nuk | miyɛt | | | McElhanon and Voorhoeve (1970) | fire |
| 977 | Northeast Kiwai (Urama Dialect) | muko | | | Wurm (1973) | |
| 2961 | Northeast Kiwai (Gope Dialect) | era: | | | Wurm (1973) | |
| 31454 | Northeast Kiwai (Gibaio Dialect) | ɛ'řa: | | | Wurm (1973) | |
| 17266 | Northeast Kiwai (Arigibi Dialect) | ɛ'lá | | | Wurm (1973) | |
| 157146 | Nomu | dzi | | | McElhanon and Voorhoeve (1970) | fire |
| 123598 | Nobonob | aib | | | Z'graggen (1980) | fire |
| 244078 | Ningil | walk | | | Laycock (1968) | |
| 20840 | Ninggerum | awop | | | Voorhoeve (1975) | |
