cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt 
-ˌnät
: an astronaut of the Soviet or Russian space program
Examples of cosmonaut in a Sentence
Recent Examples on the Web
In theory, this means cockroach cosmonauts may not actually be all that far-fetched.
—
Mack Degeurin,
Popular Science,
1 July 2026
But no more or less so than a show about Russian cosmonauts created by Americans and starring a bunch of British actors for an American streaming service (Apple’s Star City).
—
Daniel Fienberg,
HollywoodReporter,
30 June 2026
Its four crew members are NASA astronauts Commander Matthew Dominick, Pilot Michael Barratt, Mission Specialist Jeanette Epps and Roscosmos cosmonaut Mission Specialist Alexander Grebenkin.
—
Richard Tribou,
The Orlando Sentinel,
29 June 2026
The most recent spacewalk occurred May 27 when Russian cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev exited the space station.
—
Eric Lagatta,
USA Today,
29 June 2026
See All Example Sentences for cosmonaut
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Mack Degeurin,
Popular Science,
1 July 2026
But no more or less so than a show about Russian cosmonauts created by Americans and starring a bunch of British actors for an American streaming service (Apple’s Star City).
—
Daniel Fienberg,
HollywoodReporter,
30 June 2026
Its four crew members are NASA astronauts Commander Matthew Dominick, Pilot Michael Barratt, Mission Specialist Jeanette Epps and Roscosmos cosmonaut Mission Specialist Alexander Grebenkin.
—
Richard Tribou,
The Orlando Sentinel,
29 June 2026
The most recent spacewalk occurred May 27 when Russian cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev exited the space station.
—
Eric Lagatta,
USA Today,
29 June 2026
See All Example Sentences for cosmonaut
Cite this Entry
“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 7 Jul. 2026.
Copy CitationKids Definition
cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
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