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⇱ cosmonaut - WordReference.com Dictionary of English

cosmonaut

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈkɒzmənɔːt/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˈkɑzməˌnɔt, -ˌnɑt/

US:USA pronunciation: respellingUSA pronunciation: respelling(koz′mə nôt′, -not′)



WordReference Random House Learner's Dictionary of American English © 2026
cos•mo•naut /ˈkɑzməˌnɔt, -ˌnɑt/USA pronunciation   n. [countable]
  1. Astronomya Russian or Soviet astronaut.
See -cosm-, -naut-.
WordReference Random House Unabridged Dictionary of American English © 2026
cos•mo•naut  (koz′mə nôt′, -not′),USA pronunciation n. 
  1. a Russian or Soviet astronaut.
  • cosmo- + (aero)naut, representing Russian kosmonávt 1955–60
cos′mo•nau′tic, adj. 
cos′mo•nau′ti•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
cosmonaut /ˈkɒzməˌnɔːt/ n
  1. an astronaut, esp in the former Soviet Union
Etymology: 20th Century: from Russian kosmonavt, from cosmo- + Greek nautēs sailor; compare Argonaut
'cosmonaut' also found in these entries (note: many are not synonyms or translations):
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