The venetian road is known as “calle” and it is the passage that usually lies between two buildings, can be very narrow or very wide, depending on the architectural location of buildings, usually opens in a field or in a square (campo), or it can have on the Grand Canal outlet and then turn out, then takes the name of “branch”.
Some streets are named “salizade”  because in ancient times were the first to be paved with the trachyte, grey stone which is found everywhere in Venice and in dialect is called “masegni”, while the other had a corns herringbone paving of thin bricks or even had clay courts.
There are Venetian streets that are called “piscine” that were once parts of the lagoon between the buildings used like swimming pool. Later piscine was paved.
The”fondamenta” are those streets that line the canals and are called so because they were and still are the continuation of the foundations of the buildings and the reinforcement of the banks.
In Venice there are only two roads named “vie” like usual roads are called in Italy: via Garibaldi in the district of Castello and via XXII Marzo in the district of San Marco. In addition, there is one and only formally named square: the San Marco Square, all other open spaces surrounded by homes that often have centered in a statue of some famous historical character, they are called “campi” and those of smaller size “campielli”.
Good walk!