Spacer/Legends
Spacer, or mariner,[1] was a slang term that referred to those who made their livings flying through space, including pilots and crew. Most spacers ran freight, charter, or information collection operations, although many worked or moonlighted as mercenaries, bounty hunters, and smugglers. Some were hyperspace explorers. Other slang terms for "spacer" included star-hopper (which became famously attached to a group of spacers on Aduba-3), star-jumper, star-rover, and planet-jumper. The term was usually used only to describe civilians within spacefaring professions.
Gav Daragon, Han Solo and Chewbacca were examples of spacers.
Behind the scenes
Spacer is used in the Star Wars universe much in the same way that sailor is used in the real world.
Star-hopper was originally used in the first issues of Marvel's Star Wars as a synonym of spacer.