A "preview" or "foretaste" refers to an early experience or sample of something that gives an indication of what is to come. It allows individuals to anticipate and prepare for future events, products, or experiences. For example, a movie trailer serves as a preview, showcasing key scenes to entice viewers. In various contexts, previews can enhance decision-making. In literature, a book's synopsis provides a foretaste of its themes and characters. Similarly, in food, a small tasting portion offers a glimpse of a dish's flavor profile, helping diners decide whether to order it.