means The act of moving people or goods from one place to another, especially by public systems like buses and trains.

from From Latin transitus, 'a going across,' from transire — trans ('across') plus ire ('to go'). The same ire that walks through 'exit,' 'ambition,' and 'itinerary.' It entered English in the 15th century meaning a passage or crossing, including the astronomical sense of a planet crossing the sun's face. The modern 'public transit' sense — the daily crossing of cities — is a later, largely American flowering of that ancient 'going across.'