piggyback
Word family nounpiggerypiggiepiggiespiggingpiggishnesspigboatpigfeedpigheadednesspig ironpigmeatpignutpigpenpigsconcepigskinpigstypigtailpigweedpigadjectivepiggishpigheadedadverbpiggishlypiggybackpigheadedly
ldoce_259_bpig·gy·back1 /ˈpɪɡibæk/ (also piggyback ride) noun [countableC] 
CARRYif you give someone, especially a child, a piggyback, you carry them high on your shoulders, supporting them with your hands under their legs 背，驮，扛
CARRYif you give someone, especially a child, a piggyback, you carry them high on your shoulders, supporting them with your hands under their legs 背，驮，扛 —piggyback adverbadv
Examples from the Corpus
piggyback• More than 70 percent of the females at the lake reach the water with a male already riding piggyback.• I had been dreaming of Cymbeline riding piggyback on my shoulders.
piggyback2 verb [intransitiveI] informal
1 USE/CONSUMEto use something that is bigger, better, or more successful in order to help another product or project succeed 利用，借助
piggyback on/onto
videos that piggyback onto the success of proven TV programs
借助已经成功 的电视节目推出的录影带
2 to use someone else’s wi-fi connection to the Internet, without their knowledge or permission 盗用〔他人的无线网络〕
piggyback on/onto
How can I prevent other people from piggybacking onto my connection?
我怎么才能阻止其他人盗用我的网络连接？
—piggybacking noun [uncountableU]
Examples from the Corpus
piggyback on/onto• Others piggyback on existing brands by borrowing parts of their names.• I had been dreaming of Cymbeline riding piggyback on my shoulders.• These new firms are piggybacking onto technology that we developed.
From Longman Business Dictionary
piggybackpig·gy·back /ˈpɪgibæk/ verb
1[intransitiveI, transitiveT] to use a situation that already exists in order to do or get what you want
piggyback on/onto
Some pharmaceutical companies piggyback on existing brands by borrowing parts of their names.
It wants to piggyback its order onto another city’s contract to keep costs down.
2[transitiveT]TRANSPORT to move goods from one place to another, using containers that can be carried both by train and by road