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Definitions

astronaut

[as-truh-nawt, -not] / ˈæs trəˌnɔt, -ˌnɒt /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Victor Glover became the first black astronaut to reach deep space; Christina Koch the first woman; Jeremy Hansen the first Canadian.

From BBC • Apr. 16, 2026

“I would suggest to you that when you look up here, you’re not looking at us,” said Canadian Space Agency astronaut and Artemis II mission specialist astronaut Jeremy Hansen, back in Houston Saturday.

From Los Angeles Times • Apr. 12, 2026

As the Orion approached the moon on April 5, the crew woke up to a message from Apollo 16 astronaut Charlie Duke.

From The Wall Street Journal • Apr. 11, 2026

Flanked on stage by mission commander Reid Wiseman, Victor Glover and Jeremy Hansen, astronaut Christina Koch called for people on Earth to embrace their shared humanity.

From Barron's • Apr. 11, 2026

On one mission, the astronaut had so much fun floating around outside of the space capsule that his commanders had to order him to go back inside his craft.

From "Reaching for the Moon" by Katherine Johnson



Vocabulary lists containing astronaut