Armor, shields, headwear, boots, greaves, plates, helms - the sheer types of equipment available in most JRPGs are overwhelming, and it can honestly be quite hard to settle upon the best equipment that you can afford. Keeping this in mind, one such particular term that is a constant in JRPGs (and other gaming genres as well, to be honest) is equipment. Levels, experience, magic, skills, attacks, fleeing, world maps - the list is neverending.
There are many things that are synonymous with the concept of JRPGs.