Noun: cosmonaut
| Singular | cosmonaut |
| Plural | cosmonauts |
Sample Sentences
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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. [2021 April 12, Gregory McNamee, “This Soviet cosmonaut was the first human in orbit — fueling the space race”, in CNN:]
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Longtime NASA astronaut Don Pettit, who has ventured to space four times, returned to Earth on Saturday night from the International Space Station. Pettit, who turned 70 on Sunday, landed at 9:20 p.m. ET in a Soyuz spacecraft with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner near Zhezkazgan, Kazakhstan, after a seven-month stay aboard the orbiting laboratory. [2025 April 19, Ashley Strickland, “An astronaut’s awe-inspiring views from life in space”, in CNN:]
Nouns inflected like cosmonaut
soldier's woundwort,
Nicosian,
whopper,
greypate,
tactile sign language,
chronotrope,
Rosie Lee,
dissentient,
photoinactivator,
sulphonediimine,
coastal waterfall,
residuary devise,
bituminization,
nitrosonaphthol,
smṛiti,
geosphere,
backscreen,
mensuralist,
flocculate,
flocculant, etc. (List truncated at 20 nouns)
Etymology
Borrowed from Russian космона́вт (kosmonávt), from Ancient Greek κόσμος (kósmos, “universe”) + ναύτης (naútēs, “sailor”). By surface analysis, cosmo- + -naut. See: Ancient Greek Nouns '
κόσμος'.
Verbs referencing "cosmonaut"
Finnish Nouns
kosmonautti, Hungarian Nouns
kozmonauta.