trolleybus, trolley coach, trackless trolley
['microwave, microwave oven', 'green snake, grass snake', 'odometer, hodometer, mileometer, milometer', 'lighter, light, igniter, ignitor', 'ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin', 'coil, spiral, volute, whorl, helix', 'bicycle-built-for-two, tandem bicycle, tandem']