From WordNet (r) 3.0 (2006):
tram
n 1: a conveyance that transports passengers or freight in
carriers suspended from cables and supported by a series of
towers [syn: tramway, tram, aerial tramway, cable
tramway, ropeway]
2: a four-wheeled wagon that runs on tracks in a mine; "a
tramcar carries coal out of a coal mine" [syn: tramcar,
tram]
3: a wheeled vehicle that runs on rails and is propelled by
electricity [syn: streetcar, tram, tramcar, trolley,
trolley car]
v 1: travel by tram