cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt 
-ˌnät
: an astronaut of the Soviet or Russian space program
Examples of cosmonaut in a Sentence
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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, 23 July 2025
Three American astronauts and two Russian (then Soviet) cosmonauts met up for just under two days of joint operations, setting the stage for future cooperation in space.
—Robert Z. Pearlman, Space.com, 17 July 2025
The Russian cosmonauts living aboard the ISS will unpack the supplies carried inside the Progress craft's pressurized compartment.
—ArsTechnica, 11 July 2025
Also on the mission is NASA astronaut Anne McClain, JAXA astronaut Takuya Onishi and Roscosmos cosmonaut Kirill Peskov.
—Eric Lagatta, USA Today, 8 July 2025
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Richard Tribou, The Orlando Sentinel, 23 July 2025
Three American astronauts and two Russian (then Soviet) cosmonauts met up for just under two days of joint operations, setting the stage for future cooperation in space.
—Robert Z. Pearlman, Space.com, 17 July 2025
The Russian cosmonauts living aboard the ISS will unpack the supplies carried inside the Progress craft's pressurized compartment.
—ArsTechnica, 11 July 2025
Also on the mission is NASA astronaut Anne McClain, JAXA astronaut Takuya Onishi and Roscosmos cosmonaut Kirill Peskov.
—Eric Lagatta, USA Today, 8 July 2025
See All Example Sentences for cosmonaut
Cite this Entry
“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 29 Jul. 2025.
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cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
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