noun the act of passing; passage through or over.
2. transit ·vt to pass over the disk of (a heavenly body).
3. transit ·noun a line or route of passage or conveyance; as, the nicaragua transit.
4. transit ·noun the act or process of causing to pass; conveyance; as, the transit of goods through a country.
5. transit ·noun the passage of a heavenly body over the meridian of a place, or through the field of a telescope.
6. transit ·noun an instrument resembling a theodolite, used by surveyors and engineers;
called also transit compass, and surveyor's transit.
7. transit ·noun the passage of a smaller body across the disk of a larger, as of venus across the sun's disk, or of a satellite or its shadow across the disk of its primary.