2

This question already has an answer here:

Do I have several GPSs, or several GPSes, or something completely different? What is the rule to remember (will be useful later when I can have a GPS2, a GPST and maybe a GPSX too).

marked as duplicate by p.s.w.g, tchrist, Andrew Leach, mplungjan, RegDwigнt Jul 15 '13 at 12:57

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • 1
    The short answer is that you own several GPSes. The people who write GPS’s tend to get talked about, and not in a good way. – tchrist Jul 15 '13 at 12:40