transit

(trănˈsĭt, -zĭt)

1. The act of passing over, across, or through; passage.
2. a. Conveyance of people or goods from one place to another, especially on a local public transportation system.
   b. The system or vehicles used for such conveyance.
3. A transition or change, as to a spiritual existence at death.
4. Astronomy
   a. The passage of a celestial body across the observer's meridian.
   b. The passage of a smaller celestial body or its shadow across the disk of a larger celestial body.
5. A surveying instrument similar to a theodolite that measures horizontal and vertical angles.

1. To pass over, across, or through: aircraft transiting the United States and Canada.
2. To revolve (the telescope of a surveying transit) about its horizontal transverse axis in order to reverse its direction.