Piggyback

['pɪgɪbæk] or ['pɪɡɪbæk]

(noun.) the act of carrying something piggyback.

(verb.) bring into alignment with; 'an amendment to piggyback the current law'.

(verb.) support on the back and shoulders; 'He piggybacked her child so she could see the show'.

(verb.) haul by railroad car.

(verb.) haul truck trailers loaded with commodities on railroad cars.

(verb.) ride on someone's shoulders or back.

(adv.) on the back or shoulder or astraddle on the hip; 'she carried her child piggyback'.

(adv.) on a railroad flatcar; 'the trailer rode piggyback across the country'.

手打:西尔维亚--From WordNet