In linguistics and grammar, a pronoun is a word that substitutes for a noun or noun phrase. It is a particular case of a pro-form.
IP Routing is an umbrella term for the set of protocols that determine the path that data follows in order to travel across multiple networks from its source to its destination. Data is routed from its source to its destination through a series of routers, and across multiple networks.
An IP (Internet Protocol) address is a unique identifying string of numbers, like 216.27.61.137, given to every individual computer, server, and network on the Internet. Like a license plate is used to help identify vehicles, an IP address is used to identify and locate information online.