English dictionary · noun

cosmonaut

An astronaut, especially a Russian or Soviet one.

Meaning and definitions

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

Connected roots

• cosm-

  order, world, universe

• naut-

  sailor, ship

Explore the word family

These words share a recorded root connection. A shared root is a learning clue; it does not establish every step in a word’s history.

• astronaut

  a person trained to travel in a spacecraft

• cosmopolitan

  familiar with and at ease in many different countries and cultures

• cosmology

  the science of the origin and development of the universe

• microcosm

  Human nature or the human body as representative of the wider universe; man considered as a miniature counterpart of divine or universal nature.

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