Definitions of tram:

• noun:   a wheeled vehicle that runs on rails and is propelled by electricity

  Example: "`tram' and `tramcar' are British terms"

• noun:   a four-wheeled wagon that runs on tracks in a mine

  Example: "A tramcar carries coal out of a coal mine"

• noun:   a conveyance that transports passengers or freight in carriers suspended from cables and supported by a series of towers
• name:  A surname (very rare: popularity rank in the U.S.: #26988)