Definition of astronaut
:a person who travels beyond the earth's atmosphere;
also
:a trainee for spaceflight
-
Trending Now:
More Trending:
- dotage, dotard otherwise federalism bodega carceral
- ALL
What's Trending Now
More Trending Words
Indulge Your Inner Word Nerd
Recent Examples of astronaut from the Web
-
In back sat Kennedy’s wife, Ethel, and the astronaut John Glenn.
-
An astronaut, eclipse experts, reporters and some lucky contest winners had unique seats for the total solar eclipse on Monday.
-
Former astronaut Terry Willcutt will be speaking at the event as well.
-
The space suit worn by every U.S. astronaut since Project Apollo.
-
Money raised from their sale would have paid out to the astronauts' families in the event of their deaths.
-
The last thing NASA wants to do is deliver the first Martian astronauts straight into the lair of the Great Galactic Ghoul.
-
Neither the former congresswoman nor her husband, retired astronaut and Navy Capt.
-
That’s right, the powder form of the drink the astronauts took to the moon.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astronaut.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of astronaut
astr- + -naut (as in aeronaut)
ASTRONAUT Defined for English Language Learners
astronaut
play
noun
Definition of astronaut for English Language Learners
-
: a person who travels in a spacecraft into outer space
ASTRONAUT Defined for Kids
astronaut
play
noun
as·tro·naut
\
ˈa-strə-ˌnȯt
\
Definition of astronaut for Students
:a person who travels beyond the earth's atmosphere :a traveler in a spacecraft
Learn More about astronaut
-
See words that rhyme with astronaut Spanish Central: Translation of astronaut Nglish: Translation of astronaut for Spanish speakers Britannica English: Translation of astronaut for Arabic speakers Britannica.com: Encyclopedia article about astronaut
Seen and Heard
What made you want to look up astronaut? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!