A campo (field) is a square. The only piazza is Piazza San Marco.

A campiello or a campazzo is a small square.

Rio is a canal.

Rio terà is a canal that has been filled in. You can easily detect this by the different disposition of the pavement slabs.

Piscina is a pool or turning basin that has been filled in to become a square.

Calle is the name of a street.

Ruga is an important street, usually lined with shops.

Fondamenta and Riva define a wide street running along a canal.

Ramo (branch) is a short street or an extension of another street with the same name.

A salizzada indicates a paved street (once rare).

A sottoportego is an arcade or arched passage under a building.