Trolley is:

1. the term used in non-American English to refer to what Americans know as a cart, especially a shopping cart
2. the term used in American English to refer to an electric streetcar that is elsewhere known as a tram (also known as light rail)
3. the term also refers to a mechanism that rolls along a suspended rail or track.
4. A Porter's Trolley is a type of hand truck.

See also

• Trolleybus
• Trolley pole