exoskeleton – n. a firm outer covering for the body that provides both support and protection.

license – n. an official document that gives you permission to do, use, or have something

battery – n. a device that is placed inside a machine (such as a car) to supply it with electricity

artificial intelligence – n. an area of computer science dealing with the reproduction of intelligent human behavior in computers

zone – n. an area

fatigue – adj. tired

prototype – n. an example