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astronaut

astronaut

572 3.3
A person who is trained to travel and work in a vehicle that goes into space
  • noun
  • /ˈæstrəˌnɔt/
translation icon : astronauta
  • Who was the first British astronaut in space?
  • astronaut in space
  • NASA astronauts
  • space shuttle astronauts

You realize that we are astronauts right now.

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Examples

  • The astronaut trained for years before their first mission to space.

  • So we have two astronauts aboard, Bob and Doug.

  • So there was an astronaut from another country.

  • Just weeks later, the United States launched its first astronaut, Alan Shepherd.

  • This year's Chief Marshall is a NASA astronaut and an engineer.

  • NASA used the tank for astronaut pre flight space training.

  • We were trained like astronauts for three months.

  • Last week, the president called the shuttle astronauts from up there.

  • Moving with extreme care and precision, the astronauts accomplished all of the tasks asked of them.

    Academic text (1994)
  • Three successive crews of astronauts visited Skylab for periods of 1 to 3 months each.

    Academic text (1991)

Synonyms

cosmonaut
vsastronaut
18 7.4

A person from Russia or the former Soviet Union trained to travel and work in space, like an astronaut

is the general trained space traveler not tied to any national program
spaceman
vsastronaut
14 4.3

A person who travels and works in space on a spacecraft

is the trained space traveler term that applies to people of any gender

Compounds

An idea that intelligent aliens visited Earth long ago and helped early humans

How Historic

moonwalker
1 6.5
astronaut
572 3.3
tourist
511 1.0
traveler
  • US
286 1.0

Surface Forms

astronaut singular
astronauts plural

Morphology

astronaut = astro + naut

The word is built from classical combining forms meaning 'star' and 'sailor', but these are not productive standalone English morphemes for most learners, so the meaning is not easily inferred.

Etymology

The word astronaut comes from Greek parts astro- meaning 'star' and -naut meaning 'sailor', so it literally means 'star sailor'. That's why an astronaut is a person trained to travel and work in a spaceship.