| 15530 | Mountain Koiari | ono | what | | Dutton (2010) | |
| 3423 | Mubami | aʔoiro | | | Franklin (1973) | |
| 27497 | Mubami | aʔailo | | | Reesink (1976) | |
| 260022 | Mulaha | anaba | | | Dutton (1970) | what |
| 193969 | Mum | mom | | | Z'graggen (1980) | what |
| 198677 | Mungkip | nome | | | Retsema et al. (2009) | |
| 126050 | Munit | eri | | | Z'graggen (1980) | what |
| 126061 | Murupi | ate | | | Z'graggen (1980) | what |
| 193979 | Musak | ay | | | Z'graggen (1980) | what |
| 144858 | Musar | miaya | | | Z'graggen (1980) | (what) |
| 90515 | Nabak | pitne | what | | McElhanon (1967) | what |
| 214174 | Nakai | nɑʕɑi | | | Hughes (2009) | |
| 199156 | Nakame (Dzenzen Dialect) | nɑʁɑme | | | Retsema et al. (2009) | |
| 199762 | Nakame (Gufin Dialect) | nɑ:me | | | Retsema et al. (2009) | |
| 199761 | Nakame (Gufin Dialect) | nɑkɑme | | | Retsema et al. (2009) | |
| 199682 | Nakame (Munguleng Dialect) | nome | | | Retsema et al. (2009) | |
| 199284 | Nakame (Popof Dialect) | nɑχɑme | | | Retsema et al. (2009) | |
| 198796 | Nakame (Sikalan Dialect) | nakəmə | | | Retsema et al. (2009) | |
| 198915 | Nakame (Sokan Dialect) | nɑʁɑme | | | Retsema et al. (2009) | |
| 199035 | Nakame (Wasin Dialect) | nɑχɑme | | | Retsema et al. (2009) | |
| 126063 | Nake | ari | | | Z'graggen (1980) | what |
| 200248 | Nek (Goambot Dialect) | wəneɑk | | | Retsema et al. (2009) | |
| 193977 | Nend | utumʌn | | | Z'graggen (1980) | what |
| 126075 | Nobonob | ari | | | Z'graggen (1980) | what |
| 17310 | Northeast Kiwai (Arigibi Dialect) | nʌ'ʔú·řiɛ | | | Wurm (1973) | |
| 31498 | Northeast Kiwai (Gibaio Dialect) | nʌ'ʔúra: | | | Wurm (1973) | |
| 3005 | Northeast Kiwai (Gope Dialect) | naʔu | | | Wurm (1973) | |
| 1021 | Northeast Kiwai (Urama Dialect) | naʔuro | | | Wurm (1973) | |
| 199870 | Nuk (Tamben Dialect) | nuk | | | Retsema et al. (2009) | |
| 199983 | Nuk (Tunam Dialect) | nuk | | | Retsema et al. (2009) | |
| 200140 | Numanggang (Kawalang Dialect) | mɑŋgɑŋ | | | Retsema et al. (2009) | |
| 200064 | Numanggang (Tumung Dialect) | mɑŋgoŋ | | | Retsema et al. (2009) | |
| 221562 | Obokuitai | tɛig̚ju-se | | | Clouse (1997) | |
| 16360 | Odoodee (Hesif Dialect) | ogoba | | | Shaw (1986) | |
| 16260 | Odoodee (Kalamo Dialect) | ogobɔ | | | Shaw (1986) | |
| 181858 | Ogea | tʌːtɛ | | | Z'graggen (1980) | what |
| 75565 | Oirata | in'hai | | | Taber (1993) | |
| 3730 | Omati | ba | | | Franklin (1973) | |
| 14304 | Ömie | rab-e: | what? | | Dutton (2010) | |
| 14645 | Ömie | vadu | who?, what? | | Dutton (2010) | |
| 14277 | Ömie | dië|hi | what? | | Dutton (2010) | |
| 16160 | Onabasulu | ene | | | Shaw (1986) | |
| 6055 | Onabasulu | ena | | | Shaw (1973) | |
| 90502 | Ono | onoka | what | | McElhanon (1967) | what |
| 4623 | Opao | le | | | Brown (1973) | |
| 4043 | Orokolo (Kaipi Dialect) | lea' | | | Brown (1973) | |
| 4727 | Orokolo | lela | | | Brown (1973) | |
| 221568 | Orya | basa | | | Clouse (1997) | |
| 144861 | Pal | may(andepi) | | | Z'graggen (1980) | (what) |
| 144857 | Pamosu | mea | | | Z'graggen (1980) | (what) |
