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
Also aboard the station is NASA astronaut Jonny Kim, who reached the ISS in April with cosmonauts Sergey Ryzhikov and Alexey Zubritsky.
—
Eric Lagatta, USA Today, 17 Sep. 2025
Kim, and cosmonauts Sergey Ryzhikov and Alexey Zubritsky, went up in April on a Russian Soyuz spacecraft.
—Mike Wall, Space.com, 9 Sep. 2025
Along the way, Beijing has reiterated its plans to land its cosmonauts on the Moon before 2030 for scientific exploration — squarely throwing the gauntlet Stateside, where NASA’s Artemis program also scheduled a mission to return U.S. astronauts on lunar ground around 2027.
—Ruxandra Iordache, CNBC, 22 Aug. 2025
Roscomos cosmonaut Aleksandr Gorbunov making his first flight.
—Richard Tribou, The Orlando Sentinel, 18 Aug. 2025
See All Example Sentences for cosmonaut
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Eric Lagatta, USA Today, 17 Sep. 2025
Kim, and cosmonauts Sergey Ryzhikov and Alexey Zubritsky, went up in April on a Russian Soyuz spacecraft.
—Mike Wall, Space.com, 9 Sep. 2025
Along the way, Beijing has reiterated its plans to land its cosmonauts on the Moon before 2030 for scientific exploration — squarely throwing the gauntlet Stateside, where NASA’s Artemis program also scheduled a mission to return U.S. astronauts on lunar ground around 2027.
—Ruxandra Iordache, CNBC, 22 Aug. 2025
Roscomos cosmonaut Aleksandr Gorbunov making his first flight.
—Richard Tribou, The Orlando Sentinel, 18 Aug. 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 19 Sep. 2025.
Copy CitationKids Definition
cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
Love words? Need even more definitions?
Merriam-Webster unabridged
Share