The word "transit", when used alone, has several possible meanings in English

• means of transport, including mass transit, rapid transit, public transit, public transport; see transit (transportation)
• in astronomy an event involving two bodies along the same line of sight; see astronomical transit
• in navigational position lines when a navigator observes two fixed reference points in line; see navigational transit
• in surveying, a specialized instrument (more specifically, a specialized theodolite, and not to be confused with a transit instrument in astronomy, for which see below); see transit (surveying)
• a modern rock band in Dallas, TX - [1]

"Transit" is also a part of the name of:

• transit papers or transit visa ; see border control
• transit instrument , a specialized astronomical telescope for observing transits
• Transit (satellite), a precursor to the GPS satellite navigation system
• The Ford Transit, a van made by the Ford Motor Company.