The word "rialto" typically refers to a prominent commercial area or marketplace. There are several synonyms that can be used to describe such a location including bazaar, market, plaza, square and forum. Bazaar refers to a bustling market where goods are sold while market implies a more organized and regulated selling environment. Plaza and square both refer to public areas that are often associated with commercial activity, while forum describes a place where people gather for discussion or debate. Each of these synonyms can be used interchangeably with rialto to describe a vibrant and active commercial center.