In Italy, the terms frizzante and spumante are synonyms for sparkling wine.
Not exactly. While wines called frizzante and wines called spumante both sparkle, they are not the same. Frizzante wines are those that are lightly sparkling (between 1 and 2.5 bars of pressure in the bottle) according to EU regulations. They are also taxed as still wines. Spumante, by contrast, are fully sparkling, with a pressure of at least 3 bars in the bottle. Moscato d’Asti from Piedmont is an example of a frizzante wine. Wines from Piedmont called simply Asti, or Franciacorta wines from Lombardy, are both spumante wines.