Word.ws English Dictionary

Plural of cosmonaut

regular plural

The plural of cosmonaut is cosmonauts.

Forms of cosmonaut

Singularcosmonaut /ˈkɒz.məˌnɔːt/
Pluralcosmonauts
Countablecountable

Cosmonauts in a sentence

  • 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
  • Though from different social, economic, and political worlds, the astronauts and cosmonauts had much in common, both as professionals and human beings.2013, Edward Clinton Ezell, Linda Neuman Ezell, The Partnership: A NASA History of the Apollo-Soyuz Test Project, Courier Corporation, →ISBN. From the entry astronaut
  • Long term cosmonauts Gennadiy Manakov and Aleksandr Polishchuk, who arrived at Mir on Jan. 24th, will be flying French Spationaut Jean-Pierre Haignere in the older Soyuz TM-16 capsule.1993, Glenn Chapman, “Russian/French crew set to leave Mir space station”, in sci.space (Usenet). From the entry spationaut

Meaning of cosmonaut

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

Full definition of cosmonaut

Questions about the plural of cosmonaut

What is the plural of cosmonaut?
The plural of cosmonaut is cosmonauts.
Is cosmonaut countable?
Cosmonaut is a countable noun.

Source and license

Adapted from Wiktionary: cosmonaut (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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