wi-fi

Definition:

Wi-fi is a name for the popular wireless technology used in homes, mobile phones, and some game systems. A common use of wi-fi for noobies is to roam wirelessly around their house or favorite coffee shop with their laptop connecting to a wireless home network or a public wi-fi hotspot.

Here's a word you may not know...

GPS

GPS stands for Global Position System. GPS is a series of satellites orbiting the earth that can be utilized by GPS receivers to help pinpoint an exact location. The most common consumer uses of GPS include navigation systems in automobiles to map driver's routes and mobile phones to determine the location of a caller placing an emergency call.