(countable) A ride on somebody's back or shoulders. / An act or instance of piggybacking. / (medicine, countable, uncountable) The connection of one intravenous drip to another.

On somebody's back or shoulders.

(transitive) To carry (someone) on the back or shoulders. / (transitive, intransitive) To attach or append something to another (usually larger) object or event.

On somebody's back or shoulders. / Pertaining to transportation of goods where one transportation unit is carried on the back of something else. For example, a truck on a train.

plural of piggybacker

One that piggybacks.

plural of piggyback

Third-person singular simple present indicative form of piggyback

The practice of carrying something piggyback.

present participle of piggyback