easy
The astronaut trained before traveling into space.
What does Astronaut mean?
a person trained to travel and work in space.
Dictionary definition
A person trained to travel, live, or work in space as part of a space program or mission.
Example sentences
Astronaut in a sentence
medium
An astronaut performs experiments and maintains equipment aboard a spacecraft.
hard
Astronauts prepare for emergencies, physical strain, teamwork, and the conditions of spaceflight.
Writing practice
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Quick practice
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Practice the meaning of Astronaut
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What is an astronaut?
Astronauts receive special training for spaceflight and mission work.
Practice 2
Which sentence uses astronaut correctly?
Training for launch and emergencies is part of an astronaut's work.
Practice 3
Choose the best word: The science and technology of space travel is called _____.
Astronautics belongs to the astronaut word family and concerns space travel.
Practice complete
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Pronunciation coach
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Astronaut
Voice settings
Sounds like
as · truh · nawt · strongest beat: as
Tap each sound part, then blend the whole word together.
Learn
WordAstronaut.
Partnoun.
MeaningAstronaut means a person trained to travel and work in space.
ExampleExample: The astronaut trained before traveling into space.
Word breakdown
3 syllables. Say each part, then blend the word.
- Syllables
- as · truh · nawt
- Strongest beat
- as
- Ending
- nawt
- Tip
- Put a little extra energy on as.
Your turn
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Synonym review
Does Astronaut have synonyms?
Astronaut has no precise direct synonym. Space traveler explains the idea without requiring training, while crew member is a broader role that also applies outside spaceflight.
Antonym review
Does Astronaut have an opposite?
Astronaut names a trained or professional space-travel role and has no precise direct synonym or antonym. Space traveler is an explanation, while crew member is broader and can describe people who are not astronauts.
Word family
Astronaut word family
Base word
astronaut
noun
astronauts
More than one astronaut.
adjective
astronautical
Related to travel or work in space.
noun
astronautics
The science and technology of space travel.
Related words
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Student support
Understand Astronaut
Hint for students
Focus on special training for travel, life, and work in space.
Common mix-up
Astronaut and astronomer are different roles. An astronaut travels or works in space; an astronomer studies objects and events in space and may remain on Earth.
Try it in class or at home
Teams design a one-week astronaut training plan with sections for science work, physical preparation, teamwork, spacecraft systems, and emergencies, then justify each part.
Teacher prompt
What makes someone an astronaut rather than simply a traveler or scientist? Identify the training, setting, and work involved.
Word Wheel · Grades 1–3
Practice with the Grades 1–3 Space Words Wheel
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Learning activities
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