2 words in this vocabulary list
noun a machine or device that operates automatically
adjective relating to a process or action that is done without conscious thought or effort
noun A word that represents a person, place, thing, or idea. In this case, 'robot' is a noun because it is a thing.
adjective A word that describes or modifies a noun. In this case, 'autonomous' is an adjective because it describes the type of robot.