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.

“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

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

From BBC • Apr. 6, 2026

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

From BBC • Apr. 5, 2026

Artemis 2 astronaut Jeremy Hansen felt like he was "falling out of the sky" as his spacecraft followed its complex flight path to the Moon, the Canadian said in a Saturday video call.

From Barron's • Apr. 4, 2026

But before he made it through two complete rotations, Laura Friendly burst into the room wearing a reflective jogging suit that made her look like a small astronaut.

From "Millionaires for the Month" by Stacey McAnulty