mass transit, also called mass transportation, or public transportation, the movement of people within urban areas using group travel technologies such as buses and trains.
If you've been on a streetcar in San Francisco or a trolley in Philadelphia, you've ridden a tram. The word tram was originally a Scottish term for the wagons that are used in coal mines, stemming from a Middle Flemish word meaning rung or handle of a barrow.
Some common synonyms of train are discipline, educate, instruct, school, and teach. While all these words mean to cause to acquire knowledge or skill, train stresses instruction and drill with a specific end in view. trained foreign pilots to operate the new aircraft.