Piazza and Shopping center

Piazza noun - A covered structure adjoining an entrance to a building.

Shopping center and piazza are semantically related In some cases you can use "Shopping center" instead a noun "Piazza".

Shopping center noun - Mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace.

Piazza and shopping center are semantically related in collection of stores in one place topic. Sometimes you can use "Piazza" instead a noun phrase "Shopping center".