aeronaut

noun

aero·​naut ˈer-ə-ˌnȯt How to pronounce aeronaut (audio)
-ˌnät
: one who operates or travels in an airship or balloon

Examples of aeronaut in a Sentence

Recent Examples on the Web
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Elsewhere, the Lisbon festival will screen Fernando Vendrell’s Alem do Horizonte – A Travessia (Beyond the Horizon – The Crossing), which recalls early 20th-century Portuguese aeronauts Sacadura Cabral and Gago Coutinho as the first aviators to cross the Atlantic Ocean in a single leg. Etan Vlessing, HollywoodReporter, 28 Oct. 2025 During the American Civil War, aeronauts from the Union Balloon Corps piloted vessels such as the Intrepid, Constitution, Eagle, and Washington. Literary Hub, 24 Oct. 2025 That means if the rocket is terminated after just two jaunts to the Moon, sending a total of eight aeronauts on the Artemis II and III missions, NASA will have spent more than $10 billion on each astronaut’s lunar trek. Kevin Holden Platt, Forbes.com, 1 Sep. 2025 The aeronauts were unwittingly participating in an experiment that would alter the course of mathematical physics. Joseph Howlett, Quanta Magazine, 16 May 2025 See All Example Sentences for aeronaut

Word History

Etymology

borrowed from French aéronaute, from aéro- aero- + -naute (as in Argonaute argonaut), borrowed from Greek naútēs "sailor" — more at nautical

First Known Use

1784, in the meaning defined above

Time Traveler
The first known use of aeronaut was in 1784

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Cite this Entry

“Aeronaut.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aeronaut. Accessed 11 Nov. 2025.

Kids Definition

aeronaut

noun
aero·​naut ˈar-ə-ˌnȯt How to pronounce aeronaut (audio)
ˈer-,
-nät
: a person who operates or travels in an airship or a balloon

More from Merriam-Webster on aeronaut

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