cosmonaut

noun

cos·​mo·​naut ˈkäz-mə-ˌnȯt How to pronounce cosmonaut (audio)
-ˌnät
: an astronaut of the Soviet or Russian space program

Examples of cosmonaut in a Sentence

Recent Examples on the Web
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.
SpaceX already ferries astronauts and cosmonauts to and from the International Space Station using Falcon 9s carrying the company's Crew Dragon spacecraft and is building a variant of the Starship for NASA to carry astronauts back to the moon's surface in the 2026-27 timeframe. William Harwood, CBS News, 19 Nov. 2024 Also flying with be Japan Aerospace Exploration Agency astronaut Takuya Onishi making his second trip to space and rookie Roscosmos cosmonaut Kirill Peskov. Richard Tribou, Orlando Sentinel, 16 Oct. 2024 SpaceX Polaris Dawn spacewalk was first of its kind Until Thursday's event, spacewalks had only been carried out by government agencies, such as NASA astronauts and Russian cosmonauts. Brandi D. Addison, Austin American-Statesman, 12 Sep. 2024 Perhaps not coincidentally, that’s the same year Russian cosmonaut Valentina Tereshkova became the first woman to venture into space. Christopher Knight, Los Angeles Times, 29 Oct. 2024 See all Example Sentences for cosmonaut 

Word History

Etymology

Russian kosmonavt, from Greek kosmos + Russian -navt (as in aeronavt aeronaut)

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of cosmonaut was in 1955

Dictionary Entries Near cosmonaut

Cite this Entry

“Cosmonaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmonaut. Accessed 18 Dec. 2024.

Kids Definition

cosmonaut

noun
cos·​mo·​naut ˈkäz-mə-ˌnȯt How to pronounce cosmonaut (audio)
-ˌnät
: a Soviet or Russian astronaut

More from Merriam-Webster on cosmonaut

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