DictionarycosmonautSpace traveler
noun

cosmonaut

KAHZ-muh-nawt/ˈkɑːzmənɔːt/

A space traveler trained in the Russian or Soviet space program.

The cosmonaut floats inside the spacecraft, looking toward Earth through a window.

A Russian cosmonaut in a realistic white spacesuit floats inside an orbital spacecraft looking toward Earth through a window, no flag patches, lettering or insignia.
Etymology

The pieces describe a “sailor of the universe,” extending the image of navigation to space travel. English uses this term specifically for a Russian or Soviet astronaut.

In context

Carbon Mike31:10
when the news emerged that Apollo 8 had made its lunar orbit the reality of the moment struck Cosmonaut Alexei leonov who was training to command a Soviet circum lunar mission
Goodwords: Rocket Men, read by James Blott

More examples

  • Two cosmonauts work outside the space station.
  • Yuri Gagarin was the first cosmonaut to reach space.
  • The students ask the retired cosmonaut about life in orbit.

Forms

cosmonaut · cosmonauts

Similar words

astronaut
A broader term, not limited to Russian or Soviet training.