piggyback

adjective, adverb, verb, noun

Forms piggybacks piggybacking piggybacked piggy-back piggy back

1. adjective On somebody's back or shoulders. “give someone a piggyback ride”
2. adjective Pertaining to transportation of goods where one transportation unit is carried on the back of something else. For example, a truck on a train.
3. adjective Attached or appended to something larger or more important. “piggyback legislation”
4. verb (transitive) To carry (someone) on the back or shoulders.
5. verb (transitive) To ride on someone's back or shoulders.
6. verb (ambitransitive) To attach or append something to another (usually larger) object or event. “They tried to piggyback that proposal on the rivers and harbors bill.”
7. verb (transitive, Internet) To 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.
8. verb (transitive, Internet) To utilize "last-mile" wiring rented from a larger owner ISP by a smaller ISP.
9. verb (transitive) To transport (a lorry/truck) on a flatbed railway wagon.
10. verb (transitive) To enter a secured area at the same time along with (someone having authorized access); to tailgate. “Okay, when someone accesses a door with a card key, anyone additional who comes in with them is piggy-backing on their access, like someone riding piggy-back. Get it?”
11. noun (countable) A ride on somebody's back or shoulders.
12. noun An act or instance of piggybacking.
13. noun (medicine, countable, uncountable) The connection of one intravenous drip to another.

Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “piggyback”, CC BY-SA 4.0. Details