[trol-ee] 
noun, plural -leys, verb, -leyed, -ley⋅ing.| 1. | a trolley car. |
| 2. | a pulley or truck traveling on an overhead track and serving to support and move a suspended object. |
| 3. | a grooved metallic wheel or pulley carried on the end of a pole (trolley pole) by an electric car or locomotive, and held in contact with an overhead conductor, usually a suspended wire (trolley wire), from which it collects the current for the propulsion of the car or locomotive. |
| 4. | any of various devices for collecting current for such a purpose, as a pantograph, or a bowlike structure (bow trolley) sliding along an overhead wire, or a device (underground trolley) for taking current from the underground wire or conductor used by some electric railways. |
| 5. | a small truck or car operated on a track, as in a mine or factory. |
| 6. | a serving cart, as one used to serve desserts. |
| 7. | Chiefly British. any of various low carts or vehicles, as a railway handcar or costermonger's cart. |
| 8. | to convey or go by trolley. |
| 9. | off one's trolley, Slang.
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| trol·ley also trol·ly (trŏl'ē) n. pl. trol·leys also trol·lies
To convey (passengers) or travel by trolley. [Probably from troll1.] |
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