Cosmonaut

//ˈkɒz.məˌnɔːt// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    An astronaut, especially a Russian or Soviet one.

    "Khrushchev’s answer came 60 years ago, on April 12, 1961, when Soviet cosmonaut Yuri Gagarin circled the Earth aboard a spacecraft called Vostok 1."

  2. 2
    a person trained to travel in a spacecraft wordnet

Synonyms

All synonyms
alienastronautastronauttaikonaut

Example

More examples

"The Soviet cosmonaut Vladimir Komarov was killed when his spacecraft, Soyuz 1, crashed upon re-entry."

Etymology

Borrowed from Russian космона́вт (kosmonávt), from Ancient Greek κόσμος (kósmos, “universe”) + ναύτης (naútēs, “sailor”), may be decomposed as cosmo- + -naut.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.