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View synonyms for

astronaut

[as-truh-nawt, -not]

noun

  1. a person engaged in or trained for spaceflight.



astronaut

/ ˈæٰəˌɔː /

noun

  1. a person trained for travelling in space See also cosmonaut

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

astronaut

  1. A crew member of a space mission launched by the United States. (See Apollo program and Mercury program.)

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Word History and Origins

Origin of astronaut1

1925–30; astro- + (aero)naut, probably via French astronaute; astronautical
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Word History and Origins

Origin of astronaut1

C20: from astro- + -naut from Greek Բܳŧ sailor, on the model of aeronaut
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Example Sentences

Examples have not been reviewed.

The proposed budget does include two longer-term scientific goals endorsed by Trump — a return of astronauts to the moon via a project dubbed Artemis, and the landing of a crew on Mars.

From

The space agency also expects to use its Starship rocket to send astronauts to the Moon and eventually to Mars once it has been developed.

From

Musk threatened to retaliate by decommissioning SpaceX's Dragon, which ferries astronauts and supplies to the International Space Station.

From

You’ve probably heard astronauts talking to mission control while they perform operations in space.

From

The astronauts had been travelling on a test flight that was meant to last eight days.

From

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astron.astronautical