astronaut

Meanings

1. 1
   noun

   a person trained to travel in a spacecraft

   the Russians called their astronauts cosmonauts

2. 2
   noun

   A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.

3. 3
   noun

   A person (typically man) working abroad away from their family.

Etymology

From astro- + -naut. Coined from Ancient Greek ἄστρον (ástron, “star”) and ναύτης (naútēs, “sailor”).