A wine cocktail is a mixed drink, similar to a true cocktail. It is made predominantly with wine (including Champagne and Prosecco), into which distilled alcohol or other drink mixer is combined. A spritz is a drink that has Prosecco added to it.
The distinction between a wine cocktail and a cocktail with wine is the relative amounts of the various alcohols. In a wine cocktail, the wine product is the primary alcohol by volume compared to the distilled alcohol or mixer.
The following drinks are not technically cocktails unless wine is secondary by volume to a distilled beverage, since wine is a fermented beverage not a distilled one.
See also: Champagne Cocktail.