Piazza and Shopping centre

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

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

Shopping centre 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 centre are semantically related in marketplace topic. You can use "Piazza" instead a noun phrase "Shopping centre".