| Part of speech | unknown part of speech |
|---|
| Czech | co |
|---|---|
| Danish | hvad |
| Dutch | wat |
| English | what |
| Esperanto | kio |
| Faeroese | hvat |
| French | quoi; que |
| German | was |
| Hungarian | mi; mit |
| Icelandic | hvað |
| Italian | che cosa |
| Jamaican Patois | wa; we |
| Luxemburgish | wat |
| Norwegian | hva |
| Russian | что |
| Saterland Frisian | wät |
| Scottish Gaelic | ciod; dè |
| Spanish | qué; que cosa |