RIALTO Meaning of RIALTO in English n.Pronunciation: r ē - ' al-( ˌ )t ō Function: geographical name1 city SW Calif. W of San Bernardino pop 91,873 2 island & district of Venice, Italy Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012