What is the definition of trolley?

Answer 1

• Tram, an electric rail transport vehicle also known as a trolley or streetcar. Some modern light rail systems are also referred to as trolleys.
• Trolleybus, an electric bus
• Tourist trolley, a bus built to resemble a trolley car
• Trolley (horse-drawn), a goods vehicle with a platform body with four small wheels of equal size, mounted underneath it, the front two on a turntable undercarriage
• Neighborhood Trolley, the streetcar scale-model in the PBS children's television series Mister Rogers' Neighborhood
• Rail push trolley, a small vehicle for inspecting rail lines

Answer 2

A wheel attached to a pole, used for collecting current from an overhead electric wire to drive a streetcar or trolley bus.

Answer 3

A wheeled cart which can be pushed around. A tea trolley carries a teapot, cups, spoons, cream, sugar etc. A dessert trolley carries a variety of desserts.