| Part of speech | common noun |
|---|---|
| Plural | ruimtevaarders |
| Catalan | astronauta |
|---|---|
| Danish | astronaut |
| Dutch | astronaut; ruimtevaarder |
| English | astronaut; cosmonaut |
| Esperanto | astronaŭto; kosmonaŭto |
| French | astronaute; cosmonaute |
| German | Astronaut; Weltraumfahrer; Kosmonaut |
| Greek | αστροναύτης |
| Hungarian | asztronauta; űrhajós |
| Italian | astronauta; cosmonauta |
| Papiamento | kòsmonout |
| Portuguese | astronauta |
| Saterland Frisian | Astronaut; Waareldruumfoardere |
| Spanish | astronauta |
| Swedish | rymdpilot |
| Turkish | astronot |
| West Frisian | romtefarder; astronaut |