A trolley is a vehicle that carries many people and is powered by overhead electrical cables. You can also call a trolley a "tram," "cable car," or "streetcar."

If you've ridden a streetcar up and down the hills of San Francisco, you know what a trolley is. Trolleys often travel on rails that are built into the street, using electricity that comes from a third rail or overhead lines. Anyone who grew up watching "Mister Rogers' Neighborhood" on TV will remember the model Neighborhood Trolley that carried viewers into the Neighborhood of Make-Believe.

Definitions of trolley

n a wheeled vehicle that runs on rails and is propelled by electricity

streetcar, tram, tramcar, trolley car
an early form of streetcar that was drawn by horses
Type of:
self-propelled vehicle
a wheeled vehicle that carries in itself a means of propulsion

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