bicycle-built-for-two, tandem bicycle, tandem
['paddlewheel, paddle wheel', 'packet', 'honeycomb', 'ear, spike, capitulum', 'nematode, nematode worm, roundworm', 'punching bag, punch bag, punching ball, punchball', 'ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin']