piggyback

باللغة العربية: حَمْل عَلَى الظَّهْر، تَحْمِيل مَحْمُول

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

الجمع piggybacks