un astronaute
Tom doesn't want to give up his dream of becoming an astronaut.
Tom ne veut pas renoncer à son rêve de devenir astronaute.
Did you know the Russian was an astronaut?
Saviez-vous que le Russe était astronaute ?
— Mondays in the Sun (2002)
C’est un astronaute.
I'd like to become an astronaut.
J’aimerais devenir astronaute.