astronaut

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

NOUN

space explorer

Synonyms

STRONGEST

cosmonaut pilot

WEAK

moonwalker rocket scientist rocketeer space person star person

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.

That shot 57 years ago helped capture the public's imagination when it was taken by US astronaut Bill Anders during the first space mission to carry humans around the Moon.

From Barron's • Apr. 7, 2026

"It's fun to be up in space with you at the same time!" said Canadian astronaut and Artemis II crewmember Jeremy Hansen.

From Barron's • Apr. 7, 2026

We also saw the debut of Poetic Kinetics’ “Escape Velocity,” a.k.a. the Coachella astronaut, and the mirrored “Reflection Fields” by Phillip K. Smith among the festival’s major art installations.

From Los Angeles Times • Apr. 6, 2026

With communications re-established, astronaut Christina Koch said: "It's so great to hear the Earth again."

From BBC • Apr. 6, 2026

Now, she was an astronaut clipped from her vessel, floating endlessly in endlessness, with no possibility of ever returning.

From "A Heart in a Body in the World" by Deb Caletti