[{"Bold_text": "adverb", "List Items": ["one following or behind the other:to drive horses tandem."]}, {"Bold_text": "adjective", "List Items": ["having animals, seats, parts, etc., arranged tandem or one behind another."]}, {"Bold_text": "noun", "List Items": ["a vehicle, as a truck, tractor, or trailer, in which a pair or pairs of axles are arranged in tandem.", "tandem bicycle tandem bicycle.", "tandem trailer(def1) tandem trailer(def1).", "a team of horses harnessed one behind the other.", "a two-wheeled carriage with a high driver's , drawn by two or more horses so harnessed.", "any of various mechanisms having a tandem arrangement."]}]