Belter: human or alien living primarily in an asteroid mining community
LG (el-gee): human from a low-gravity environment
Heavy: human from a high-gravity environment
Sim or Sim-Bot: a machine, typically mobile, with a sophisticated simulated intelligence operating system which can be interacted with verbally and often appears sentient. The term 'Sim' is commonly used when referring to a humanoid-looking robot, often acting as assistant, companion and/or bodyguard.