Definitions
1.nounA ride on somebody's back or shoulders.
2.nounAn act or instance of piggybacking.
3.verbTo attach or append something to another (usually larger) object or event."The popular host can’t claim credit for the trade, though. The idea wasn’t his. He piggybacked off another successful investor who had a history of picking winners."
4.verbTo obtain a wireless internet connection by bringing one's own computer within the range of another's wireless connection without that subscriber's permission or knowledge.
5.verbTo utilize "last-mile" wiring rented from a larger owner ISP by a smaller ISP.
6.verbTo carry someone on the back or shoulders.
7.verbTo transport (a lorry/truck) on a flatbed railway waggon
8.verbTo enter a secured area at the same time along with someone having authorized access; to tailgate
9.adjectiveOn somebody's back or shoulders."a piggyback ride"
10.adjectivePertaining to transportation of goods where one transportation unit is carried on the back of something else. For example, a truck on a train.
11.adverbOn somebody's back or shoulders."to ride piggyback"