Pronunciation: (pē-az'u, -ä'zuor, for 1, 3 esp.Brit., pē-at'su, -ät'-; for 1 also It. pyät'tsä),[key] —n., —pl.pi•az•zas,It.piaz•zePronunciation: (pyät'tse).[key] 1. an open square or public place in a city or town, esp. in Italy.
2. Chiefly New Eng. and Inland South.a large porch on a house; veranda.
3. Chiefly Brit.an arcade or covered walk or gallery, as around a public square or in front of a building.