verb. ['ˈpɪgiːˌbæk'] ride on someone's shoulders or back.
adverb. ['ˈpɪgiːˌbæk'] on a railroad flatcar.
adverb. ['ˈpɪgiːˌbæk'] on the back or shoulder or astraddle on the hip.
verb. ['ˈpɪgiːˌbæk'] haul by railroad car.
noun. ['ˈpɪgiːˌbæk'] the act of carrying something piggyback.
verb. ['ˈpɪgiːˌbæk'] bring into alignment with.
verb. ['ˈpɪgiːˌbæk'] support on the back and shoulders.
verb. ['ˈpɪgiːˌbæk'] haul truck trailers loaded with commodities on railroad cars.