Definitions
1.NounA main road or highway, especially in ancient Rome. (Mainly used in set phrases, below.)
2.NounA small hole in a printed circuit board filled with metal which connects two or more layers.
3.NounAn electrical connection which connects two or more layers on a printed circuit board or an integrated circuit.
4.PrepositionBy way of; passing through."They drove from New York to Los Angeles via Omaha.; You can enter the building via the western gate."
5.PrepositionBy (means of); using."I'll send you the information via e-mail."
6.InterjectionAway! Be off!