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

Canadian astronaut Jenni Gibbons was at the heart of NASA's control room in Houston on Monday, supporting her Artemis II crewmates remotely during their flight around the Moon.

From Barron's • Apr. 7, 2026

“We do so in honoring the extraordinary efforts and feats of our predecessors in human space exploration,” said Canadian astronaut and Artemis II mission specialist Jeremy Hansen.

From Los Angeles Times • Apr. 6, 2026

In 1968 astronaut Bill Anders made history when he took the now-famous picture Earthrise.

From BBC • Apr. 5, 2026

If Americans ever knew, many of them forgot that these women had taken part in astronaut testing in the early 1960s.

From "Women in Space" by Karen Bush Gibson