| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | kometo | kometoj |
| Accusative | kometon | kometojn |
| Albanian | kometa |
|---|---|
| Catalan | cometa |
| Czech | kometa |
| Danish | komet |
| Dutch | komeet; staartster |
| English | comet |
| English (Old English) | cometa |
| Faeroese | halastjørna |
| French | comète |
| German | Komet; Schweifstern |
| Greek | κομήτες |
| Greek (Old Greek) | κομήτης |
| Hungarian | üstökös |
| Icelandic | halastjarna |
| Italian | cometa |
| Latin | cometes; fax |
| Luxemburgish | Koméit |
| Malay | komet |
| Norwegian | komet |
| Papiamento | kometa |
| Polish | kometa |
| Portuguese | cometa |
| Romanian | cometă |
| Russian | комета |
| Saterland Frisian | Komet; Komete |
| Scots | comet |
| Spanish | cometa |
| Swahili | nyotamkia |
| Swedish | komet |
| Tagalog | kometa |
| Thai | ดาวหาง |
| Turkish | kuyruklu yıldız |
| Welsh | comed |
| West Frisian | sturtstjer; komeet |