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
Roscomos cosmonaut Aleksandr Gorbunov making his first flight.
—
Richard Tribou, The Orlando Sentinel, 14 Apr. 2026
Aboard the Vostok 1 spacecraft, Russian cosmonaut Yuri Gagarin became the first human to enter outer space and orbit Earth.
—Usa Today, USA Today, 14 Apr. 2026
The three cosmonauts currently living on the orbiting lab — Sergey Kud-Sverchkov, Sergei Mikaev and Andrey Fedyaev — did not participate.
—Mike Wall, Space.com, 8 Apr. 2026
America has its astronauts; Russia its cosmonauts.
—Chicago Tribune, 4 Apr. 2026
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Richard Tribou, The Orlando Sentinel, 14 Apr. 2026
Aboard the Vostok 1 spacecraft, Russian cosmonaut Yuri Gagarin became the first human to enter outer space and orbit Earth.
—Usa Today, USA Today, 14 Apr. 2026
The three cosmonauts currently living on the orbiting lab — Sergey Kud-Sverchkov, Sergei Mikaev and Andrey Fedyaev — did not participate.
—Mike Wall, Space.com, 8 Apr. 2026
America has its astronauts; Russia its cosmonauts.
—Chicago Tribune, 4 Apr. 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 22 Apr. 2026.
Copy CitationKids Definition
cosmonaut
noun
cos·mo·naut
ˈkäz-mə-ˌnȯt
-ˌnät
: a Soviet or Russian astronaut
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