astronaut

noun3

1. •
   A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.
2. •
   An American space traveler, when contrasted against equivalent terms from other countries such as cosmonaut, taikonaut, spationaut, and vyomanaut.

   • Though from different social, economic, and political worlds, the astronauts and cosmonauts had much in common, both as professionals and human beings. — 2013
3. •
   (Hong-Kong) A person (typically man) working abroad away from their family.